April 12: "Experimental post-selection loophole-free time-bin and energy-time nonlocality with integrated photonics",
in collaboration with
Francesco Santagiustina,
Costantino Agnesi,
Alvaro Alarcón,
Guilherme Xavier,
Paolo Villoresi and
Giuseppe Vallone, published as Optica 11, 4, 498-511 (2024).
April 5: "Lifting noncontextuality inequalities", in collaboration with Raman Choudhary and Rui Soares Barbosa, accepted in Phys. Rev. A.
April 3: "Certifying sets of quantum observables with any full-rank state", in collaboration with Zhen-Peng Xu,
Debashis Saha and Kishor Bharti, published as Phys. Rev. Lett. 132, 14, 140201 (2024).
April 1-3: 25th anniversary of XQP, Bad Aibling, Germany. About XQP.
March 1: "Certifying sets of quantum observables with any full-rank state", in collaboration with Zhen-Peng Xu,
Debashis Saha and Kishor Bharti, accepted in Phys. Rev. Lett.
February 28: 40:35 in the XIII Carrera Popular la Tagarrera (8.000 m), La Puebla de Los Infantes.
February 17: Diego El Cigala, Sevilla.
February 7:
Defense of PhD thesis of Rafael Freitas dos Santos, Center for Theoretical Physics, Polish Academy of Sciences, Warsaw (committee, online).
February 7: "Loophole-free Bell tests with randomly chosen subsets of measurement settings", in collaboration with Jaskaran Singh, published as Phys. Rev. A 109, 2, 022204 (2024).
February 5: "Experimental post-selection loophole-free time-bin and energy-time nonlocality with integrated photonics", in collaboration with
Francesco Santagiustina,
Costantino Agnesi,
Alvaro Alarcón,
Guilherme Xavier,
Paolo Villoresi and
Giuseppe Vallone,
accepted for publication in Optica.
February 2: "Test of the physical significance of Bell nonlocality", in collaboration with Carlos Vieira and Ravishankar Ramanathan, posted as arXiv:2402.00801.
January 29: "The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios", in collaboration with Lucas E. A. Porto,
Rafael Rabelo and
Marcelo Terra Cunha, published as
Philos. Trans. R. Soc. A 382, 2268, 20230006 (2024).
January 24: "Lifting noncontextuality inequalities", in collaboration with Raman Choudhary and Rui Soares Barbosa, posted as arXiv:2401.12349.
January 12: "Loophole-free Bell tests with randomly chosen subsets of measurement settings", in collaboration with Jaskaran Singh, accepted for publication in Phys. Rev. A.
January 3: Cáceres.
January 1: Happy 2024!
December 31: 53:43 in the San Silvestre Vallecana 2023 (10.000 m), Madrid.
December 5: Talk at the Universisade de Santiago de Compostela.
November 30-December 5: Santiago de Compostela.
November 30: "Minimum full nonlocality, all versus nothing nonlocality, and quantum pseudo telepathy", posted as arXiv:2311.17735.
November 29: Online talk at Center for Theoretical Physics, Polish Academy of Sciences, Warsaw.
November 25-26: Campinas-Recife-Lisbon-Sevilla.
November 19-25: Universidade Estadual de Campinas, Campinas. Two talks: November 20 and 21.
November 18-19: Recife.
November 13-17: Quantum Systems in Noronha.
November 10: Lisbon, Recife.
November 6: Two talks: one in the morning at the IES Real Instituto de Jovellanos, the other in the afternoon at the Escuela de Comercio, XVII Jornadas Jovellanos de Divulgación Científica, Gijón.
November 5-7: Gijón.
October 28: Steve Hogarth, Galileo Galilei, Madrid.
October 22: 54:15 at the Carrera Popular Casco Antiguo (10.000 m), Sevilla.
October 19: "Self-testing of a single quantum system from theory to experiment", in collaboration with Xiao-Min Hu, Yi Xie, Atul Singh Arora,
Ming-Zhong Ai,
Kishor Bharti, Jie Zhang, Wei Wu, Ping-Xing Chen, Jin-Ming Cui, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo,
Jérémie Roland and Leong-Chuan Kwek, published as
npj Quantum Information 9, 103 (2023).
October 16: "Impossibility of bipartite full nonlocality, all-versus-nothing proofs, and pseudo-telepathy in small Bell scenarios", in collaboration with Yuan Liu, Ho Yiu Chung,
Emmanuel Zambrini Cruzeiro, Junior R. Gonzales-Ureta and
Ravishankar Ramanathan, posted as arXiv:2310.10600.
October 8: 53:45 Cross 3 Playas (10.000 m), Ondarreta-Isla de Santa Clara-Ondarreta (1.000 m swimming), San Sebastián.
September 29: Carrera Nocturna del Guadalquivir (8.500 m), Sevilla.
September 27:
"The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios", in collaboration with Lucas E. A. Porto,
Rafael Rabelo and
Marcelo Terra Cunha, accepted for publication in Philos. Trans. R. Soc. A.
September 26: "Self-testing of a single quantum system from theory to experiment", in collaboration with Xiao-Min Hu, Yi Xie, Atul Singh Arora,
Ming-Zhong Ai,
Kishor Bharti, Jie Zhang, Wei Wu, Ping-Xing Chen, Jin-Ming Cui, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo,
Jérémie Roland and Leong-Chuan Kwek, accepted in npj Quantum Information.
September 22-29: Danny Greenberger's 90th birthday Symposium on the Foundations of Quantum Physics, Vienna.
September 18-October 11: Fundamentals of Quantum Technologies, in the Master's degree in Quantum Technologies.
September 11: "State-independent certification of quantum observables", in collaboration with Zhen-Peng Xu,
Debashis Saha and Kishor Bharti, posted as arXiv:2309.05735.
September 4: "Loophole-free Bell tests with randomly chosen subsets of measurement settings", in collaboration with Jaskaran Singh, posted as arXiv:2309.00442.
September 1: Joaquín Sabina (Jaime Asúa and Curro Romero), Plaza de toros de la Maestranza, Sevilla.
August 19: 55:27 at Stockholm's Midnight Run (Midnattsloppet) (10.000 m). This has been my ninth midnattsloppet.
August 1: Steve Hogarth, Biblioteket Live, Stockholm.
Setlist.
July 29-August 21: Stockholm.
July 7: "Logical possibilities for physics after MIP*=RE", in collaboration with
Marco Túlio Quintino and
Mattias Kleinmann,
posted as arXiv:2307.02920.
June 18-July 8: Quantum Information, Centro de Ciencias de Benasque "Pedro Pascual", Benasque.
June 13: "Experimental test of high-dimensional quantum contextuality based on contextuality concentration", in collaboration with
Zheng-Hao Liu,
Hui-Xian Meng,
Zhen-Peng Xu,
Jie Zhou,
Jing-Ling Chen,
Jin-Shi Xu,
Chuan-Feng Li and
Guang-Can Guo, published as Phys. Rev. Lett. 130, 240202 (2023).
June 10: Marea, Cáceres.
May 31:
"The quantum maxima for the basic graphs of exclusivity are not reachable in Bell scenarios", in collaboration with
Lucas E. A. Porto,
Rafael Rabelo and
Marcelo Terra Cunha,
posted as arXiv:2305.19247.
May 31:
"Long-distance measurement-device-independent quantum key distribution using entangled states between continuous and discrete variables", in collaboration with
Soumyakanti Bose,
Jaskaran Singh and
Hyunseok Jeong,
posted as arXiv:2305.18906.
May 29-June 1: ICE-8, Santiago de Compostela.
May 26-June 5: Santiago de Compostela.
May 21: 53:49 in the Carrera Popular Parque María Luisa (10.000 m), Sevilla.
May 18: Online talk at the Universidad de Alicante.
May 17-26: Raman Choudhary visists us.
May 9: "Experimental test of high-dimensional quantum contextuality based on contextuality concentration", in collaboration with
Zheng-Hao Liu,
Hui-Xian Meng,
Zhen-Peng Xu,
Jie Zhou,
Jing-Ling Chen,
Jin-Shi Xu,
Chuan-Feng Li and
Guang-Can Guo, accepted in Phys. Rev. Lett.
May 6: Écija.
April 28-29: Marillion Weekend Italy, Gran Teatro Geox, Padua.
April 22-30: Padua.
April 16: 54:05 in the Carrera Popular Parque de Miraflores (10.000 m), Sevilla. I have to train more.
April 12: Some media coverage of our recent Phys. Rev. Lett.:
Education Times,
TechCircle,
Careers360,
BW Education,
Shiksha.
March 28:
"Wine, Quantum, a Life Worth Living -- Is Quantumness in the Eye of the Beholder?", Chris Fuchs in conversation with Marissa Giustina, Rüdiger Schack and me. Filmed at The Attic, 14633 Ventura Blvd.
Sherman Oaks, CA, 91403.
Photos:
1,
2,
3,
4,
5 (photo by Bill Thisdell),
6,
7,
8,
9,
10,
11 (with Ruediger Shack, Bill Thisdell, Chris Fuchs and Marissa Giustina).
March 26: Pilot whales and dolphins at Los Cristianos (morning),
Garachico (evening), Tenerife.
March 25: Teide National Park, Pico Viejo,
Roques de García (morning),
Playa de las Teresitas,
Anaga Rural Park (evening), Tenerife.
March 24: "El problema de las interpretaciones de la mecánica cuántica", Fundación Canaria Orotava de Historia de la Ciencia,
La Orotava,
Tenerife.
March 24:
San Cristobal de La Laguna,
Tenerife.
March 22-23: Puerto de la Cruz, Tenerife.
March 22-27: Tenerife.
March 13: "No-localidad: Cómo lo hace la naturaleza?", Facultad de Ciencias de la Universidad de Zaragoza (morning), "Einstein y la física cuántica", Paraninfo de la Universidad de Zaragoza (afternoon): Video. On March 13, 1923, Einstein gave two conferences in Zaragoza.
March 12-14: Zaragoza.
March 10: "Optimal and tight Bell inequalities for state-independent contextuality sets", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, published as Phys. Rev. Res. 5, L012035 (2023).
March 5: 51:08 in the Carrera Popular Nervión San Pablo (10.000 m), Sevilla.
March 4: Cortegana,
Aroche,
Almonaster la Real.
March 2: Alisson Cordeiro finishes his visit. He started in September 1st.
February 28: 39:25 in the XIII Carrera Popular la Tagarrera (8.000 m), La Puebla de Los Infantes.
Photos: 1,
2,
3.
February 24: "Quantum contextuality provides communication complexity advantage", in collaboration with
Shashank Gupta,
Debashis Saha,
Zhen-Peng Xu
and
Archan S. Majumdar, published as Phys. Rev. Lett. 130, 080802 (2023).
February 19: Brad Mehldau Trio (Larry Grenadier, Jeff Ballard), Teatro de la Maestranza, Sevilla. My favourite piece was their version of Sydney Bechet's
Si tu vois ma mère.
Photo.
February 17: "Optimal and tight Bell inequalities for state-independent contextuality sets", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, accepted for publication in Phys. Rev. Research.
Photo with Junior and Ana by Markus Hennrich.
February 14:
"Certification of genuine time-bin and energy-time entanglement
with integrated photonics", in collaboration with
Francesco Santagiustina,
Costantino Agnesi,
Alvaro Alarcón,
Guilherme Xavier,
Paolo Villoresi and
Giuseppe Vallone,
posted as arXiv:2302.06522.
Two weeks ago with Francesco, Pino, Jan-Åke, Jaskaran (on line), Guilherme, Alvaro and Paolo.
February 6: "Graph-theoretic approach to Bell experiments with low detection efficiency", in collaboration with
Zhen-Peng Xu,
Jonathan Steinberg,
Jaskaran Singh,
Antonio J. López-Tarrida and
José R. Portillo, published as Quantum 7, 922 (2023).
Photo with Joserra, Jaskaran and Antonio (in Sevilla), and Zhen-Peng and Jonathan (in Siegen).
January 31: "Quantum contextuality provides communication complexity advantage", in collaboration with
Shashank Gupta,
Debashis Saha,
Zhen-Peng Xu
and
Archan S. Majumdar, accepted for publication in Phys. Rev. Lett.
January 29-February 5: SECRET meeting, Padua. Group photo with (form left to right): Francesco Santagiustina, Giuseppe Vallone, Jan-Åke Larsson, Jaskaran Singh (on line), Guilherme Xavier, Alvaro Alarcón and Paolo Villoresi. The hug in a chip.
Photos of Padua:
1 (Palazzo Bo, University of Padua),
2,
3 (Prato della Valle),
4,
5,
6 (Basilica of Saint Anthony of Padua),
7,
8 (Scrovegni Chapel),
9,
10,
11,
12 (Museo Civico),
13,
14 (Basilica Cathedral of Saint Mary of the Assumption),
15 (Palazzo della Ragione),
16,
17,
18 (Piazza dei Signori),
19,
20,
21.
The best places (I found) to eat in Padua:
The Coffee Box (best coffee and pancakes with maple syrup and red berries),
Dalla Zita (best panini),
Enotavola Pino (best experience):
Calamaro arrostito, salsa al suo nero, finocchio grigliato, croccante di alghe,
spaghetti alla chitarra, all'uovo, gambero rosso, caviale di nero, pistacchio, spuma di provola affumicata e cedro candito (half a portion),
bottoni alla carbonara terra e mare: ripieno di coda di rospo e guanciale, uova miste di pesce, zabaioe salato, pecorino (half a portion),
capasanta grigliata, zuccas bravas, ajoli all'aglio nero, erbe di laguna, semi di zucca (half a portion),
Pinomisù: brownie al cioccolato, spuma al mascarpone e Sanmarzano Bosci, salsa calda di cioccolato e caffè,
semifreddo al curry, caramello al cocco, salsa al passion fruit e crumble di arachidi speziato,
dessert del giorno.
Photos of Venice:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35.
January 28: Derby Motoreta's Burrito Kachimba, Cartuja Center, Sevilla.
January 9-20: "Teaching Fundamentals of Quantum Technologies" in the Master's degree in Quantum Technologies organized by the Universidad Internacional Menéndez Pelayo and 9 Spanish universities.
January 2: Monfragüe National Park.
Photos:
1 (Salto del Gitano 1),
2,
3,
4 (Salto del Gitano 2),
5,
6 (el castillo).
January 1: Happy 2023!
December 31: 51:53 in the San Silvestre Vallecana 2022 (10.000 m), Madrid. Traditional photo in the subway after the race.
December 19: "Kochen-Specker contextuality", in collaboration with Costantino Budroni,
Otfried Gühne,
Matthias Kleinmann and
Jan-Åke Larsson,
published as Rev. Mod. Phys. 94, 045007 (2022). The happy authors in 2013.
December 15-20: 5th workshop Quantum Contextuality in Quantum Mechanics and Beyond (QCQMB), Prague. Photos during the workshop: With Philippe Grangier, photo by Dagomir Kaszlikowski. More photos.
Photos of Prague:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11 (with Carmen under the snow),
12 (photo by Carmen Santana),
13,
14 (view from the venue; you can compared it with
this one, taken in May 2019),
15 (compare it with
this one, taken in October 2017),
16,
17,
18.
December 12: Bell and Beyond. Photos of my talk by Markus Hennrich:
1,
2,
3,
4.
Panel discussion with 2022 Nobel Laureates in Physics: Our roads to the Nobel Prize.
Photo of Aspect and Zeilinger.
December 8: The Nobel lectures 2022, Stockholm. Photos: With John Clauser,
with Alain Aspect (and Jean-Marc Merolla),
with Anton Zeilinger,
talking to Anton (photo by Markus Hennrich), the three, a beautiful photo by Eva Manhart.
December 4-14: Stockholm. Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11.
With Marek Żukowski and Otfried Gühne during Marek's 70th birthday, with Harald Weinfurter and Mohamed Bourennane, with Paweł Horodecki, Armin Tavakoli and Mohamed.
November 30: "Exponentially decreasing critical detection efficiency for any Bell inequality", in collaboration with Nikolai Miklin, Anubhav Chaturvedi,
Mohamed Bourennane and Marcin Pawłowski, published as Phys. Rev. Lett. 129, 230403 (2022).
November 28: Cádiz.
Photo with Tavo and Elena.
November 26-December 3: Gustavo Cañas visits us.
November 25: Online seminar at the University of Campinas.
November 24: Göteborg-Barcelona-Sevilla.
November 24: "Quantum nonlocality: How does nature do it?",
Wallenberg Centre for Quantum Technology (WACQT),
Chalmers University of Technology, Göteborg. Photos of Göteborg:
1,
2,
3,
4.
Photos at Chalmers (where Wampa, Lumi, Pingu, Thor and Loki live):
1,
2,
3,
4.
November 23: Lund-Göteborg.
November 22: "Quantum contextuality: An introduction (I & II)", WACQT lectures at Lund University. Photos of Lund:
1,
2,
3,
4,
5,
6,
7,
8,
9.
November 21: Sevilla-Amsterdam-Copenhagen-Lund.
November 17: "Device-independent quantum key distribution in context", online seminar at the Université de Moncton, New Brunswick, Canada.
November 15: "Quantum nonlocality: How does nature do it?" posted as arXiv:2211.06476.
November 7: "Irreducible magic sets for n-qubit systems", in collaboration with Stefan Trandafir and Petr Lisoněk, published as Phys. Rev. Lett. 129, 200401 (2022).
November 5-6: Lisbon.
Visiting Emmanuel Zambrini at the IST.
Photo with Emmanuel and Junior (in Stockholm).
Photos of Lisboa:
1,
2,
3,
4,
5.
November 2-5: FoQaCiA meeting, Braga. Photos: 1,
2, 3 (with Rafael Wagner and Raman Choudhary).
Photos of Braga:
1,
2, 3,
4.
November 1: "Exponentially decreasing critical detection efficiency for any Bell inequality", in collaboration with Nikolai Miklin, Anubhav Chaturvedi,
Mohamed Bourennane and Marcin Pawłowski, accepted for publication in Phys. Rev. Lett.
October 31-November 1: Porto.
Photos of Porto:
1,
2, 3,
4,
5,
6, 7,
8,
9.
October 25: Pillip Ball writes about the experimental realization of the quantum pseudotelepathy game and the all-versus-nothing proof in Scientific American.
October 25: Cécile McLorin Salvant, Lope de Vega, Sevilla.
October 23: 52:39 in the Carrera Popular Casco Antiguo (10.000 m), Sevilla. Slow motion video after 9 km,
photo after the race.
October 19: "El Premio Nobel de Física 2022: entrelazamiento y no-localidad de Bell", online talk at the Universidad Nacional Mayor de San Marcos, Lima.
October 15: Jorge Drexler, Cartuja Center.
October 13: Talk at the Facultad de Física de la Universidad de Sevilla.
October 9: 52:23 at the Cross 3 Playas (10.000 m), San Sebastián. Ondarreta-Isla de Santa Clara-Ondarreta (1.000 m swimming), with Géza Giedke. Photo with Géza.
October 7-11: San Sebastián.
Photos:
1,
2, 3.
October 4: Finally!!!
Alain Aspect,
John Clauser (right)
and
Anton Zeilinger (right) awarded the 2022 Nobel Prize in Physics "for experiments with entangled photons, establishing the violation of Bell inequalities and pioneering quantum information science". Bell, Shimmony, and many others will be soon in Stockholm.
September 30: Carrera Nocturna del Guadalquivir (8.500 m), Sevilla.
September 26-29: Quantum Correlations of Nature, Siegen.
September 24: Deep Purple, Sevilla.
September 19: "Introduction to entanglement and nonlocality", seminar for the
Asociación Sevillana de Estudiantes de Física.
September 16: "Irreducible magic sets for n-qubit systems", in collaboration with Stefan Trandafir and Petr Lisoněk, accepted for publication in Phys. Rev. Lett.
September 14: Richard Healey visits us.
September 11-17: Zhen-Peng Xu visits us. Photo.
September 8: "Experimental test of high-dimensional quantum contextuality based on contextuality concentration", in collaboration with
Zheng-Hao Liu,
Hui-Xian Meng,
Zhen-Peng Xu,
Jie Zhou,
Jing-Ling Chen,
Jin-Shi Xu,
Chuan-Feng Li and
Guang-Can Guo, posted as
arXiv:2209.02808.
September 1: "Graph-theoretic framework for self-testing in Bell scenarios", in collaboration with Kishor Bharti, Maharshi Ray, Zhen-Peng Xu, Masahito Hayashi and
Leong-Chuan Kwek, accepted for publication in Phys. Rev. X Quantum.
September 1-3: La Barrosa.
August 30-September 1: Cádiz.
August 30: Setenil de las Bodegas.
August 28-30: Ronda.
Photos:
1,
2, 3,
4,
5,
6, 7,
8.
August 17-18: Amsterdam.
Photos:
1,
2, 3,
4,
5.
August 16: Raúl Limón's article in EL PAÍS about quantum pseudotelepathy. English version.
August 16: "Kochen-Specker contextuality", in collaboration with Costantino Budroni,
Otfried Gühne,
Matthias Kleinmann and
Jan-Åke Larsson, accepted
for publication in Rev. Mod. Phys. The happy authors in 2013.
August 13: 52:50 at Stockholm's Midnight Run (Midnattsloppet) (10.000 m). This has been my eighth midnattsloppet. 2012: 51:17. 2014: 51:45. 2015: 54:01. 2016: 54:45. 2017: 52:50. 2018: 55:43. 2019: 52:57. Before and
after the race. This is the song we sing before running.
Hammarby supporters sing it at every home game (Kenta Gustafsson was a Hammarby supporter). English translation.
August 6: Rigmor Gustafsson Kvartett, Fasching in Bloom, Stockholm.
August 3-4: Running with Marek Żukowski in Mehedeby. We have ran together in
Rome,
Vienna,
Stockholm,
Växjö,
Sevilla,
Bad Honnef,
Sopot and
Besançon.
August 1-4: "Quantum Confessions", Mehedeby, Sweden. It is good to know that there is a quantum church somewhere. Photo with Nicolas Gisin.
Conference photo by Roope Uola.
More photos:
1,
2, 3,
4,
5,
6, 7,
8.
July 31: The Rolling Stones,
Friends Arena,
Solna,
Stockholm. Fantastic, unbelievable.
Street fighting man,
Angie,
Out of control,
Jumping Jack Flash.
Photo.
July 22: John Scofield Yankee Go Home, Fasching in Bloom, Stockholm.
Photos:
1,
2, 3.
July 21: Charles Lloyd Quartet featuring Bill Frisell, Reuben Rogers and Kendrick Scott, Fasching in Bloom, Stockholm.
Photos:
1,
2, 3,
4,
5.
July 20: Science and other media have covered the recent experiment on the Peres-Mermin (aka all-vs-nothing) game with hyperentangled states.
July 20: "Optimal and tight Bell inequalities for state-independent contextuality sets", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, posted as arXiv:2207.08850.
Photo with Junior and Ana by Markus Hennrich.
Other photo by Markus,
the three of us working.
July 14: Cécile McLorin Salvant, Fasching in Bloom, Stockholm. Photos: 1,
2.
June 22: Katie McCormick has written about "The spooky quantum phenomenon you've never heard of" in Quanta.
June 21: Linköping, Sweden.
Photo with Guilherme Xavier.
June 20, 22-25: "Quantum Connections in Sweden-10", Lidingö, Sweden.
Photos:
1,
2,
3 (with Frank Wilczek).
June 11-August 17: Stockholm. Invited Professor in Theoretical Physics at Fysikum, Stockholm University.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31.
June 11: Radio interview in Canal Extremadura about quantum communication.
June 9: Jethro Tull, Cartuja Center, Sevilla.
June 4: Red Hot Chili Peppers, Estadio de la Cartuja, Sevilla. Awful sound.
May 30: Fabian Bernards's PhD thesis ("Generalized Bell inequalities and quantum entanglement") defence, at the University of Siegen. I was online from Sevilla.
May 29: 53:05 in the Carrera Popular Parque de Miraflores (10.000 m), Sevilla. Too many hours of flying, not enough sleep.
May 28: La decimocuarta ya está en Madrid.
May 28: Fito & Fitipaldis, Estadio de la Cartuja, Sevilla.
May 25: Raúl Limón's article in EL PAÍS about Ronald Hanson's recent experiment.
May 24: Frank Wilczek's presentation of the Swedish version of his book "Fundamentals. 10 Keys to Reality" (translated by Helena Granström) in the Science Fiction Bokhandeln, Stockholm.
May 20-22: Marillion Weekend Sweden, Cirkus, Stockholm. Friday: Off-key songs. Saturday: Dim Gray (fantastic) and An hour before it's dark. Sunday: Seasons end.
May 20-28: First scientific long trip after the pandemic: Stockholm.
Photos:
1,
2, 3,
4,
5,
6.
May 15: 52:17 in the Carrera Popular Parque María Luisa (10.000 m), Sevilla.
May 12: "Graph-theoretic approach to Bell experiments with low detection efficiency", in collaboration with
Zhen-Peng Xu,
Jonathan Steinberg,
Jaskaran Singh,
Antonio J. López-Tarrida and
José R. Portillo, posted as arXiv:2205.05098. Photo with Joserra, Jaskaran and Antonio (in Sevilla), and Zhen-Peng and Jonathan (in Siegen).
May 9: "Quantum contextuality provides communication complexity advantage", in collaboration with
Shashank Gupta,
Debashis Saha,
Zhen-Peng Xu
and
Archan S. Majumdar, posted as arXiv:2205.03308.
May 4: "Stronger Hardy-like proof of quantum contextuality", in collaboration with Wen-Rong Qi,
Jie Zhou,
Ling-Jun Kong,
Zhen-Peng Xu,
Hui-Xian Meng,
Rui Liu,
Zhou-Xiang Wang,
Chenghou Tu,
Yongnan Li,
Jing-Ling Chen and
Hui-Tian Wang, accepted in
Photonics Res.
April 26: "Exponentially decreasing critical detection efficiency for any Bell inequality", in collaboration with Nikolai Miklin, Anubhav Chaturvedi,
Mohamed Bourennane and Marcin Pawłowski, posted as arXiv:2204.11726.
Photo (by Piotr Mironowicz) with Otfried, Paweł, Mohamed, Marek, Marcin and Matthias in Stockholm in June 2018.
March 27: 50:30 in the Carrera Popular Parque Infanta Elena (10.000 m), Sevilla.
March 24: EC funding approves FoQaCiA-Foundations of Quantum Computational Advantage.
March 18: "Self-testing of a single quantum system: Theory and experiment", in collaboration with Xiao-Min Hu, Yi Xie, Atul Singh Arora,
Ming-Zhong Ai,
Kishor Bharti, Jie Zhang, Wei Wu, Ping-Xing Chen, Jin-Ming Cui, Bi-Heng Liu, Yun-Feng Huang, Chuan-Feng Li, Guang-Can Guo, Jérémie Roland and Leong-Chuan Kwek, posted as arXiv:2203.09003.
March 13: 52:12 in the Carrera Popular Nervión San Pablo (10.000 m), Sevilla. Photo (by Carmen Santana).
March 1: "Irreducible magic sets for n-qubit systems", in collaboration with Stefan Trandafir and Petr Lisoněk, posted as arXiv:2202.13141.
February 28: 39:19 at the XII Carrera Popular La Tagarrera (8.000 m), La Puebla de los Infantes (Sevilla). Photos: 1, 2,
3,
4.
February 18: Talk at the "International Conference on Quantum Information and Foundations" (ICQIF-2022), Indian Statistical Institute, Kolkata (February 14-24, 2022). Talk (it is at 6:32:40).
February 18: Media coverage of the Tsinghua experiment.
February 10: Newsletter of the University of Sevilla about the Tsinghua experiment.
February 9: "Significant-loophole-free test of Kochen-Specker contextuality using two species of atomic-ions", in collaboration with Pengfei Wang,
Junhua Zhang,
Chun-Yang Luan,
Mark Um,
Ye Wang,
Mu Qiao,
Tian Xie,
Jing-Ning Zhang, and
Kihwan Kim,
published as Sci. Adv. 8, eabk1660 (2022).
February 3: English version of Raúl Limón's article in EL PAÍS.
January 27: Raúl Limón has written in EL PAÍS about quantum computers and the Hefei experiment: web version, printed version.
January 24: "Ruling out real-valued standard formalism of quantum theory", in collaboration with
Ming-Cheng Chen,
Can Wang,
Feng-Ming Liu,
Jian-Wen Wang,
Chong Ying,
Zhong-Xia Shang,
Yu-Lin Wu,
Ming Gong,
Hui Deng,
Fu-Tian Liang,
Qiang Zhang,
Cheng-Zhi Peng,
Xiaobo Zhu,
Chao-Yang Lu and
Jian-Wei Pan,
published as Phys. Rev. Lett. 128, 040403 (2022), together with a related experiment and an introduction by Alessio Avella.
January 17: Piedrahíta.
January 15: My aunt Ana passed away today in Piedrahíta. May she rest in peace.
January 12: Third dose of the COVID-19 vaccine.
January 11: Jaskaran Singh arrives in Sevilla.
January 5: Zhen-Peng Xu, Jing-Ling Chen, and Otfried Gühne have won the 2021 Paul Ehrenfest Best Paper Award for Quantum Foundations for their "Proof of the Peres conjecture for contextuality". Patricia Contreras has written about it in La Razón.
January 3, 2022: "Bosonic indistinguishability-dependent contextuality", in collaboration with
Ali Asadian, published as Phys. Rev. A 105, 012404 (2022).
December 31: San Silvestre Vallecana 2021 (10.000 m). Masks, 25.000 rather than 40.000 participants. The hottest edition in history, with 17 degrees at the start at 16.30. 2015: 52:53. 2016: 52:50. 2017: 52:44. 2018: 52:37. 2019: 52:17. 2021: 50:56. We are back! Traditional photo in the subway after the race.
December 28: "Significant-loophole-free test of Kochen-Specker contextuality using two species of atomic-ions", in collaboration with Pengfei Wang,
Junhua Zhang,
Chun-Yang Luan,
Mark Um,
Ye Wang,
Mu Qiao,
Tian Xie,
Jing-Ning Zhang, and
Kihwan Kim,
posted as arXiv:2112.13612.
December 24: Francisco R. Villatoro has written about the experiments excluding alternatives to quantum theory using real Hilbert spaces and the assumption that independent preparations are represented by product states.
December 15: "Bosonic indistinguishability-dependent contextuality", in collaboration with
Ali Asadian,
accepted in Phys. Rev. A.
December 7: "Ruling out real-valued standard formalism of quantum theory", in collaboration with
Ming-Cheng Chen,
Can Wang,
Feng-Ming Liu,
Jian-Wen Wang,
Chong Ying,
Zhong-Xia Shang,
Yu-Lin Wu,
Ming Gong,
Hui Deng,
Fu-Tian Liang,
Qiang Zhang,
Cheng-Zhi Peng,
Xiaobo Zhu,
Chao-Yang Lu and
Jian-Wei Pan,
accepted in Phys. Rev. Lett.
December 7: "Significant-loophole-free test of Kochen-Specker contextuality using two species of atomic-ions", in collaboration with
Pengfei Wang,
Junhua Zhang,
Chun-Yang Luan,
Mark Um,
Ye Wang,
Mu Qiao,
Tian Xie,
Jing-Ning Zhang, and
Kihwan Kim,
accepted in Science Advances.
November 13-26: Zhen-Peng Xu visits us in Sevilla.
October 28: Andrés Suárez, Cartuja Center,
Sevilla.
September 25: Robe, Centro Andaluz de Arte Contemporáneo, Sevilla.
August 20-22: Santiago de Compostela.
August 19: Tui, Baiona, Miradouro de Monteferro, Nigrán, Silleda.
August 18: Tower of Lapela, Salvaterra de Miño, Palácio da Brejoeira, Solar de Serrade.
August 17: Bom Jesus do Monte, Braga, Viana do Castelo, Monção.
August 16: Porto.
August 15: Aveiro.
August 14: Águeda.
August 11: "Converting contextuality into nonlocality", published as
Phys. Rev. Lett. 127, 070401 (2021).
July 14: Patricia Contreras Tejada's online PhD thesis defence, at the Universidad Complutense de Madrid. Photo: Patricia, the supervisors and the panel.
July 8: "Converting contextuality into nonlocality", accepted for publication in Phys. Rev. Lett.
July 4: My 53rd birthday in La Puebla de los Infantes. Photos soon.
June 17: Second dose of the COVID-19 vaccine at the Estadio de La Cartuja in Sevilla.
May 28: "Device-independent quantum key distribution based on Bell inequalities with more than two inputs and two outputs", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, published as
Phys. Rev. A 103, 052436 (2021).
May 27: First dose of the COVID-19 vaccine (Pfizer) administered at the Estadio de La Cartuja in Sevilla.
May 22: "Bell non-locality and Kochen-Specker contextuality: How are they connected?" published as
Found. Phys. 51, 61 (2021).
May 17-21: The 4th workshop Quantum Contextuality in Quantum Mechanics and Beyond (QCQMB). Virtual meeting. My talk.
May 12: "Device-independent quantum key distribution based on Bell inequalities with more than two inputs and two outputs", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, accepted for publication in Phys. Rev. A.
May 5: "Bell non-locality and Kochen-Specker contextuality: How are they connected?" accepted for publication in Found. Phys.
April 28: "Graph-theoretic framework for self-testing in Bell scenarios", in collaboration with Kishor Bharti, Maharshi Ray, Zhen-Peng Xu, Masahito Hayashi and
Leong-Chuan Kwek, posted as arXiv:2104.13035.
April 12: "Bell nonlocality and Kochen-Specker contextuality: How are they connected?", online talk within the Vienna Certer for Quantum Science and Technology Colloquium.
April 2: "Device-independent quantum key distribution based on Bell inequalities with more than two inputs and two outputs", in collaboration with Junior R. Gonzales-Ureta and Ana Predojević, posted as arXiv:2104.00413.
March 26: Radio interview: Onda Local de Andalucía.
March 25:
"Ideal measurements and the problem of understanding quantum mechanics", online talk within the IFIC Colloquium.
March 23: "Bell nonlocality between sequential pairs of observers", posted as arXiv:2103.11844.
March 16: "Ruling out real-number description of quantum mechanics", in collaboration with Ming-Cheng Chen, Can Wang, Feng-Ming Liu, Jian-Wen Wang, Chong Ying, Zhong-Xia Shang, Yulin Wu, Ming Gong, Hui Deng, Futian Liang, Qiang Zhang, Cheng-Zhi Peng, Xiao-Bo Zhu, Chao-Yang Lu and Jian-Wei Pan, posted as arXiv:2103.08123.
March 9: "Multidimensional entanglement generation with multicore optical fibers", in collaboration with Esteban S. Gómez,
Santiago Gómez, I. Machuca, Sebastião Pádua, Steve Walborn, and Gustavo Lima, published as
Phys. Rev. Applied 15, 034024 (2021).
February 26: "Quantum contextuality", in collaboration with Costantino Budroni,
Otfried Gühne,
Matthias Kleinmann and
Jan-Åke Larsson,
posted as arXiv:2102.13036. The authors over the years:
2009 (O, J, A, M),
2012 (A, O, M, J),
2013 (A, J, C, O, M),
2015 (A, C, M),
2017 (A, O, M, [J], C),
2018 (M, C, A, O, J),
2021.
February 2: "Bosonic indistinguishability-dependent contextuality", in collaboration with Ali Asadian, posted as arXiv:2102.00746.
January 26: Radio interview: Luciérnagas, Radio Santa María.
January 18: "Quantum randomness protected against detection loophole attacks", in collaboration with Piotr Mironowicz,
Gustavo Cañas, Jaime Cariñe,
Esteban S. Gómez, Johanna Figueroa Barra, Guilherme B. Xavier,
Gustavo Lima and Marcin Pawłowski, published as
Quantum Inf. Process. 20, 39 (2021). Photo with Gustavo Lima, Esteban, Jaime, Gustavo Cañas, Johanna and Guilherme in Concepción in 2014.
December 31: San Silvestre Vallecana 2020 (10.000 m) (virtual). The first ever San Silvestre Vallecana-Sevillana. 10.350 m in 56 min in the streets and parks of the south of Sevilla. Photo asap.
December 19: The municipality of Seville reopened.
December 11: Physics World announces its Breakthrough of the Year finalists for 2020... and we are there!
December 4-9: "Quantum Foundations, Technologies and Applications" (QFTA2020) (online), Indian Institute of Science Education and Research (IISER), Mohali. Video of my online talk.
December 3:
"Multi-dimensional entanglement generation with multi-core optical fibers", in collaboration with Esteban S. Gómez,
Santiago Gómez, I. Machuca, Sebastião Pádua, Steve Walborn, and Gustavo Lima, accepted for publication in Phys. Rev. Appl.
November 30: "Converting contextuality into nonlocality", posted as arXiv:2011.13790.
November 20: "Quantum randomness protected against detection loophole attacks", in collaboration with Piotr Mironowicz,
Gustavo Cañas, Jaime Cariñe,
Esteban S. Gómez, Johanna Figueroa Barra, Guilherme B. Xavier,
Gustavo Lima and Marcin Pawłowski, accepted for publication in Quantum Inf. Process. Photo with Gustavo Lima, Esteban, Jaime, Gustavo Cañas, Johanna and Guilherme in Concepción in 2014.
November 17: Kwek Leong Chuan Group, Centre of Quantum Technologies, virtual seminar. Slides.
November 16: "Graph-theoretic approach to dimension witnessing", in collaboration with Maharshi Ray, Naresh Goud Boddu, Kishor Bharti and Leong-Chuan Kwek, accepted for publication in New J. Phys. Working online with Maharshi and Kishor.
November 12: Virtual seminar at the Grup d'Informació Quàntica, Universitat Autònoma de Barcelona. Slides.
October 30: The municipality of Seville is closed.
October 25: Spain begins overnight curfews after declaring state of emergency.
October 25: Beautiful walk between Barbate and Los Caños de Meca (and back). Photos:
1 (Playa de la Hierbabuena, Barbate),
2,
3,
4,
5,
6 (Torre del Tajo),
7,
8,
9,
10,
11,
12 (Playa de los Castillejos, Los Caños de Meca),
13,
14,
15 (Torre del Tajo, in the way back),
16,
17,
18,
19.
October 23: Historical introduction to quantum contextuality, QCQMB Colloquium (YouTube channel), web and slides.
October 19: Ciclo de charlas de la RSEF en la Universidad de Sevilla.
October 18: Playa de la Barrosa, Chiclana de la Frontera.
October 18 (canceled): Carrera Casco Antiguo (10.000 m), Sevilla.
October 10-11: Breathing. Mirador de las Palomas y Vértice Geodésico, Embalse de José Torán, Embalse del Retortillo. Photos: 1, 2, 3,
4, 5, 6.
October 5: "General Bayesian theories and the emergence of the exclusivity principle", in collaboration with
Giulio Chiribella,
Matthias Kleinmann and
Markus P. Müller, published as Phys. Rev. Research 2, 4, 042001(R) (2020). Photos: The authors in Linköping, Sweden, in 2015,
in Hong Kong, in 2016 (photo by Debbie Leung) and
in Stellenbosch, South Africa, in 2017.
October 1 (canceled): Carlos Chaouen in Malandar, Sevilla.
September 24 (& 29): Finally, one day at the beach: Playa de la Barrosa, Chiclana de la Frontera.
June-September: Summer in Sevilla: 1, 2a (haircut), 2b,
3, 4a (swimmingpool of the US), 4b,
5, 6, 7.
September 2: "General Bayesian theories and the emergence of the exclusivity principle", in collaboration with Giulio Chiribella, Matthias Kleinmann and Markus P. Müller (photo by Debbie Leung, in Hong Kong, in 2016), accepted for publication as a Rapid Communication in Phys. Rev. Research.
September 1: "Bell nonlocality with intensity information only", in collaboration with Ari Patrick, published as Phys. Rev. A 102, 3, 032201 (2020). With Ari, enjoying Sevilla in February.
August 15 (canceled): Stockholm's Midnight Run (Midnattsloppet) (10.000 m).
August 10-12 (canceled): Workshop Quantum Confessions, Mehedeby (Sweden).
August 5: "Bell nonlocality with intensity information only", in collaboration with Ari Patrick, accepted in Phys. Rev. A.
July 22: "Graph-theoretic approach to dimension witnessing", in collaboration with Maharshi Ray, Naresh Goud Boddu, Kishor Bharti and Leong-Chuan Kwek, posted as arXiv:2007.10746.
July 4: My 52nd birthday. Photos: 1, 2, 3.
June 21: State of alert in Spain ends. Photos of the lockdown: 1, 2, 3,
4, 5, 6.
June 8-11 (canceled): Quantum Information and Probability: From Foundations to Engineering (QIP), Linnaeus University, Växjö, Sweden.
June 1-5 (postponed): Spring school, Siegen.
May 26-29 (postponed till May 25-28, 2021): Quantum Information in Spain (ICE-6), Granada.
May 30 (postponed): Extremoduro in Sevilla.
May 24 (canceled): Carrera Parque de Miraflores (10.000 m), Sevilla.
May 19: "Multi-dimensional entanglement generation with multi-core optical fibers", in collaboration with Esteban S. Gómez,
Santiago Gómez, I. Machuca, Sebastião Pádua, Steve Walborn, and Gustavo Lima, posted as arXiv:2005.07847.
May 14-18 (postponed till similar dates in 2021): Workshop Quantum Contextuality in Quantum Mechanics and Beyond, Prague.
May 10 (canceled):
Carrera Parque de María Luisa (10.000 m), Sevilla.
May 7: "Tracking the dynamics of an ideal quantum measurement", in collaboration with Fabian Pokorny, Chi Zhang,
Gerard Higgins,
Matthias Kleinmann and
Markus Hennrich, covered today in El País.
May 2: Lockdown easing starts today: We can go out for a walk or do some individual sport once a day (and only from 6 to 10 or from 20 to 23 if you are between 14 and 70 years old). Photo.
April 29: "Bell nonlocality with no information of which particle of Alice is entangled with which particle of Bob", in collaboration with Ari Patrick, posted as arXiv:2004.13443.
April 19 (canceled):
Carrera Nervión San Pablo (10.000 m), Sevilla.
April 2: "Experimental certification of sustained entanglement and nonlocality after sequential measurements", in collaboration with Giulio Foletto, Luca Calderaro, Armin Tavakoli, Matteo Schiavon, Francesco Picciariello, Paolo Villoresi and Giuseppe Vallone, published as Phys. Rev. Appl. 13, 4, 044008 (2020).
March 25 (canceled): Martirio y Chano Domínguez,
Teatro Lope de Vega, Sevilla.
March 23 (canceled): Joshua Redman Quartet,
Teatro Lope de Vega, Sevilla.
March 22 (canceled):
Carrera Parque Infanta Elena (10.000 m), Sevilla.
March 14: State of alert in Spain. Lockdown begins.
February 28: "Experimental demonstration of sustained entanglement and nonlocality after sequential measurements", in collaboration with Giulio Foletto, Luca Calderaro, Armin Tavakoli, Matteo Schiavon, Francesco Picciariello, Paolo Villoresi and Giuseppe Vallone, accepted in Phys. Rev. Appl.
February 26: "Tracking the dynamics of an ideal quantum measurement", in collaboration with Fabian Pokorny, Chi Zhang,
Gerard Higgins,
Matthias Kleinmann and
Markus Hennrich, published as Phys. Rev. Lett. 124, 080401 (2020). Media:
Stockholm University,
EurekAlert!,
AlphaGalileo,
University of Siegen,
SciTechDaily,
ScienceDaily,
PhysOrg,
GITLaborportal,
InnovationsReport,
IDW,
Physics World,
Forbes,
New Scientist (NL).
February 5: "Universal multi-port interferometers with minimal optical depth", in collaboration with Luciano Pereira,
Alejandro Rojas,
Gustavo Cañas,
Gustavo Lima
and Aldo Delgado,
posted as arXiv:2002.01371.
February 3: Mariza,
Teatro Lope de Vega, Sevilla. Photos:
1,
2.
February 1: Jorge Drexler, Cartuja Center, Sevilla.
January 27: "Experimental certification of an informationally complete quantum measurement in a device-independent protocol", in collaboration with
Massimiliano Smania,
Piotr Mironowicz,
Mohamed Nawareg,
Marcin Pawłowski and Mohamed Bourennane,
published as Optica 7, 2, 123-128 (2020).
January 25: "Tracking the dynamics of an ideal quantum measurement", in collaboration with Fabian Pokorny, Chi Zhang,
Gerard Higgins,
Matthias Kleinmann and
Markus Hennrich, accepted for publication in Phys. Rev. Lett.
January 19: Pulau Ubin. Photos:
1,
2,
3,
4.
3D coffee:
1,
2,
3.
January 17-20: Centre for Quantum Technologies, Singapore.
Photos:
1 (Quantum Cafe),
2 (With Sixia Yu),
3 (With Otfried, Kishor and Sixia),
4 (Group photo),
5 (With Otfried, Ana and Marcelo in a Vietnamese restaurant),
6 (Park Avenue Hotel),
7.
January 13-16: Agency at the Interface of Quantum and Complexity Science, Hotel Fort Canning, Singapore.
Photos:
1,
2,
3.
January 12-20: Singapore.
Photos:
1,
2,
3,
4 (Asian Civilisations Museum),
5,
6,
7.
December 31: 52:17 at San Silvestre Vallecana 2019 (10.000 m).
Not bad. 2018: 52:37, 2017: 52:44, 2016: 52:50, 2015: 52:53. I've been running this race for 18 years in a row. Photo after running.
December 13: Seminar at La Sapienza, Rome. Photo.
December 12: Marillion with friends from the orchestra, Auditoirum Conciliazione, Rome.
Photos:
1,
2.
December 10: Enrico Rava, Aula Magna, Università La Sapienza, Rome. Photo.
December 10-15: Rome. Photos:
1,
2,
3,
4 (I Dolci di Nonna Vincenza),
5,
6 (with Fabio Sciarrino in I Porchettoni),
7,
8,
9,
10,
11,
12,
13,
14 (with Nicolò Spagnolo, Fabio Sciarrino and Gonzalo Carvacho in the Trattoria Marcantonio),
15 (pizza imperiale in Meid in Nepols),
16 (Cafe Marziali 1922),
17 (Etruscan Museum of Villa Giulia),
18,
19,
20,
21,
22 (spaghetti all'amatriciana in La Trattoriola di Luca).
December 9: "Experimental certification of an informationally complete quantum measurement in a device-independent protocol", in collaboration with
Massimiliano Smania,
Piotr Mironowicz,
Mohamed Nawareg,
Marcin Pawłowski and Mohamed Bourennane, accepted for publication in Optica.
December 5: Bryan Adams, Sevilla. Fantastic concert.
December 2: Lisbon.
November 30: Excursion to Baía Formosa.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35.
November 24-29: Workshop on Quantum Correlations, Contextuality and All That Again^3, Natal (Brazil).
Photos:
1,
2,
3,
4,
5 (Ponta Negra at night, group photo),
6 (in the International Institute of Physics, group photo),
7 (Ponta do Pirambu, group photo),
8,
9,
10 (samba in the street),
11,
12,
13 (with Bárbara and Marcelo).
November 22: "Local certification of programmable quantum devices of arbitrary high dimensionality", in colaboration with Kishor Bharti, Maharshi Ray, Antonios Varvitsiotis and Leong-Chuan Kwek, posted as arXiv:1911.09448.
November 20: Talk at the Universidad de Concepción.
Photo.
November 17: Corrida Aniversario Centenario UdeC (10.000 m), Concepción. Canceled.
November 13: Talk at the Universidad de Concepción.
November 11: Corrida Diario El Sur (10.000 m), Concepción. Canceled.
November 10 & 17: Cerro Caracol and Mirador Alemán, Concepción.
Photos:
1,
2,
3,
4,
5,
6.
November 9: Cocholgüe.
Photos:
1,
2,
3,
4,
5,
6,
7.
November 2-23: Concepción (Chile).
Group photos:
1 (the arrival of Steve Walborn),
2 (Paulina, Gustavo, Bibi, Steve and Esteban),
3 (meat at Gustavo's),
4 (Star Wars with Aldo),
5 (Star Wars with Steve),
6 (our friends in the lake),
7 (Laguna Grande de San Pedro).
The words or the prophets, photos:
If you don't let us dream, we won't let you sleep!,
Now who's afraid?,
We're going to change everything and we're not afraid.
November 1-2: Buenos Aires. Photos:
1 (Pizzería Güerrin),
2,
3,
4.
October 31: "Device-independent tests of structures of measurement incompatibility", in collaboration with Marco Túlio Quintino, Costantino Budroni, Erik Woodhead and Daniel Cavalcanti, published as Phys. Rev. Lett. 123, 18, 180401 (2019).
October 30: Valdes Peninsula.
Puerto Pirámides.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9 (Juan Pablo Paz, Wojciech Zurek and Raymond Laflamme).
Punta Tombo.
Photos:
1,
2,
3,
4.
October 29-November 1: Workshop on Quantum Foundations and Quantum Information, Puerto Madryn.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12 (Wojciech Zurek),
13 (Antonio Acín),
14 (Jeff Kimble),
15 (with Marcelo, Mimi, Ana and Marcelo),
16.
October 28: Punta Loma Natural Reserve, Puerto Madryn (Argentine).
October 27: Buenos Aires. Photos:
1,
2 (Pizzería Güerrin, 11 a.m.),
3,
4.
October 20: 52:28 in the Carrera Popular Casco Antiguo (10.000 m), Sevilla.
October 18: Marea, Sevilla.
October 14: Talk at the Donostia International Physics Center (DIPC), San Sebastián.
October 13: 53:49 (enjoying the views, the day was fantastic) in the Cross 3 Playas (10.000 m); probably the most beautiful race I've ever run + Ondarreta-Isla de Santa Clara-Ondarreta (1.000 m swimming), San Sebastián.
Photos:
1,
2,
3,
4.
Gifs:
1,
2.
October 12-16: San Sebastián.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12 (jump),
13 (fly),
14,
15,
16,
17,
18,
19,
20 (my family's photos),
21 (shadows in the sand),
22,
23,
24,
25,
26.
October 11: Manolo García, FIBES auditorium,
Sevilla.
September 28: Utrera.
September 27: Carrera Nocturna del Guadalquivir (8.500 m), Sevilla.
Photos before and after the race.
September 27: "Device-independent tests of structures of measurement incompatibility", in collaboration with Marco Túlio Quintino, Costantino Budroni, Erik Woodhead and Daniel Cavalcanti, accepted in Phys. Rev. Lett.
September 27: "The problem of quantum correlations and the totalitarian principle" posted as arXiv:1909.12093.
September 24: "Quantum correlations from simple assumptions" published as Phys. Rev. A 100, 3, 032120 (2019).
One of the figures has been selected for the section Kaleidoscope on Phys. Rev. A web site.
September 16: "The problem of quantum correlations and the totalitarian principle" published (online) as Philos. Trans. R. Soc. A 377, 2157, 2019.0136 (2019). The printed version will be published in November 2019.
September 13: Meeting on the European Quantum Communication Infrastructure in the MICINN in Madrid.
September 6: Les Luthiers, Teatro de la Maestranza, Sevilla.
September 2: Sad news. Helmut Rauch passed away. Photo with Brian LaCour, Otfried Gühne, Helmut Rauch and Yuji Hasegawa in Vienna, November 2008.
August 26: "Quantum correlations from simple assumptions" accepted in Phys. Rev. A.
August 17: 52:57 at Stockholm's Midnight Run (Midnattsloppet) (10.000 m). Last year: 55:43.
Photos:
1 (before the race),
2 (after the race),
3,
4,
5.
August 5: "Experimental test of maximal tripartite nonlocality using an entangled state and local measurements that are maximally incompatible", in collaboration with Hammad Anwer, Mohamed Nawareg and Mohamed Bourennane, published as Phys. Rev. A 100, 2, 022104 (2019) (and Editor's Suggestion).
August 5: "The problem of quantum correlations and the totalitarian principle" accepted in Philos. Trans. R. Soc. A.
August 5-21: Stockholm. Photos:
1,
2,
3,
4,
5,
6 (Meno Male, Kungsholmen),
7,
8,
9 (rain),
10 (swim),
11 (Kungsholmen map),
12,
13,
14,
15 (rain 2),
16,
17,
18.
July 31: More good news: Our project SECRET (SECuRe quantum communication based on Energy-Time/time-bin entanglement), together with Linköping and Padova, is among those recommended for funding in the QuantERA call 2019.
July 24: Good news: Our project "Quantum Device-Independent Secure Communication Over Metropolitan Distances (Qdisc)" has been funded within the program "Proyectos I+D+i en el marco del Programa Operativo FEDER Andalucía 2014-2020" (Reference US-15097).
July 15-18: San Sebastián.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16.
July 4: My 51 birthday.
June 27: "Robust self-testing of quantum systems via noncontextuality inequalities", in collaboration with
Kishor Bharti,
Maharshi Ray,
Antonios Varvitsiotis,
Naqueeb Ahmad Warsi
and Leong-Chuan Kwek, published as Phys. Rev. Lett. 122, 25, 250403 (2019). Photos with Kishor in April in Stockholm:
1,
2.
"Scheme will certify solo quantum devices" in the AAPPS Bulletin.
June 25: "Experimental test of maximal tripartite nonlocality using a new entangled state and local measurements that are maximally incompatible", in collaboration with Hammad Anwer, Mohamed Nawareg and Mohamed Bourennane, accepted in Phys. Rev. A.
June 23-July 14: Quantum Information, Centro de Ciencias de Benasque "Pedro Pascual", Benasque.
Photos:
1 (with the Marcelos),
2 (with Deba),
3 (blackboard 1: Advances in quantum information 2017-2019),
4 (blackboard 2: Challenges),
5 (blackboard 3: Bets),
6 (anniversary),
7 (all-terrain sleeper),
8,
9,
10,
21 (Portillón de Benás),
22,
23 (Salvaguardia),
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35,
36 (butterflies),
37,
38 (snail),
39 (portraits),
40,
41,
42,
43 (Coll de Toro),
44,
45 (Aigualluts).
June 23: Alquézar.
Photos:
1,
2,
3 (with Ana Blasco in Casa Pardina).
June 18: "Experimental demonstration of sustained entanglement and nonlocality after sequential measurements", in collaboration with Giulio Foletto, Luca Calderaro, Armin Tavakoli, Matteo Schiavon, Francesco Picciariello, Paolo Villoresi and Giuseppe Vallone, posted as arXiv:1906.07412.
June 17: Sting in Stockholm. Photos:
1,
2,
3,
4,
5,
6.
June 13-20: Quantum Connections in Sweden 6: Physics Summer School on Quantum Frontiers, Lidingö, Sweden. Photos:
1 (Frank Wilczek),
2,
3 (with Jian-Wei Pan).
June 9-12: Quantum Information Revolution: Impact to Foundations?,
Linnaeus University, Växjö, Sweden.
Photos:
1 (breakfast),
2 (lake),
3 (Lucien),
4 (Chris),
5 (Jan-Åke),
6 (Richard, Yutaka and Jan-Åke),
7 (group).
June 7-9 and 13-20: Stockholm.
Photos:
1 (les trois mousquetaires),
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12 (sailing!),
13,
14,
15,
16,
17,
18.
June 5: "Robust self-testing of quantum systems via noncontextuality inequalities", in collaboration with
Kishor Bharti,
Maharshi Ray,
Antonios Varvitsiotis,
Naqueeb Ahmad Warsi
and Leong-Chuan Kwek,
accepted in Phys. Rev. Lett.
May 28-31: ICE-5 and Latorrefest, Barcelona.
May 23-26: New Directions in the Foundations of Physics, Palazzo dei Papi, Viterbo. Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10.
May 22-23, 26-28: Rome. Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18.
May 18-22: Workshop Quantum Contextuality in Quantum Mechanics and Beyond, Prague.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17 (night),
18 (and day),
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32,
33,
34,
35.
May 14: The Bad Plus, Teatro Lope de Vega, Sevilla. Photo.
May 10: Caminito del Rey.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23,
24,
25,
26,
27,
28,
29,
30,
31,
32 (La Finca Blanca, Álora),
33,
34,
35,
36,
37.
April 14-26: New Directions in Quantum Information, Stockholm.
Photos:
1,
2,
3,
4,
5,
6 (compare with this one in February),
7,
8,
9,
10,
11,
12,
13,
14,
15,
16,
17,
18,
19,
20,
21,
22,
23.
April 11: "Generalized Bell nonlocality and Kochen-Specker contextuality are equivalent in quantum theory" posted as arXiv:1904.05306.
April 8-14: New Trends in Complex Quantum Systems Dynamics, Palazzo Cavalli-Franchetti, Venice. Photos:
1,
2,
3,
4,
5 (Santa Maria della Salute),
6,
7,
8,
9,
10,
11,
12,
13,
14 (San Stefano),
15,
16,
17,
18 (La Fenice),
19,
20,
21,
22,
23,
24,
25,
26,
27,
28 (Scuola Grande di San Rocco),
29,
30,
31,
32,
33,
34,
35,
36,
37 (Santa Maria dei Miracoli),
38,
39 (San Marco),
40 (San Marco),
41,
42 (from the top of San Giorgio Maggiore),
43 (Murano),
44,
45,
46,
47,
48.
April 7: Carrera Popular Parque Vega de Triana (10.000 m), Sevilla. Photo after the race.
March 28-30: Jornadas de presentación del Instituto Carlos I, Granada.
March 26: "Tracking the dynamics of an ideal quantum measurement", in collaboration with Fabian Pokorny, Chi Zhang,
Gerard Higgins,
Matthias Kleinmann and
Markus Hennrich, posted as arXiv:1903.10398.
March 24: Carrera Popular Nervión San Pablo (10.000 m), Sevilla. Photo in the km 8.
March 18: Branford Marsalis (with Joey Calderazzo, Eric Revis and Justin Faulkner), Teatro Lope de Vega, Sevilla.
March 9: Asfalto, Más que una intención 35 años después, Madrid.
March 6-8: Kick-off meeting of the COST action on "Trapped Ions: Progress in Classical and Quantum Applications", Granada. Photos: COST action group photo,
with Daniel Rodríguez (photo by Markus Hennrich),
Alhambra.
February 27-March 4: Stockholm.
Photos:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10,
11,
12 (compare with this one in April),
13,
14,
15 (with Mohamed and Max).
February 18: "Device-independent tests of structures of measurement incompatibility", in collaboration with Marco Túlio Quintino, Costantino Budroni and Daniel Cavalcanti, posted as arXiv:1902.05841.
February 14: Read also today's entry in Mateus's blog. I find that nature's answer saying "sorry, there is absolutely nothing governing or restricting the measurement outcomes, therefore the best you can do is to adopt a vector space to represent states and measurements and embrace the Born rule" particularly compelling. Perhaps not as romantic as a multiverse, a holistic quantum potential, or the quantum dragons, but much more compelling.
February 13: We show up in Philip Ball's "Mysterious Quantum Rule Reconstructed From Scratch".
February 12: "Necessary and sufficient condition for contextuality from incompatibility", in collaboration with Zhen-Peng Xu, published as Phys. Rev A 99, 2, 020103(R) (2019).
February 2-6: Istanbul.
Sultanahmet Mosque (the "Blue Mosque"):
1,
2,
3,
4.
Hagia Sophia:
1,
2,
3,
4,
5,
6,
7.
Basilica Cistern.
Istanbul Archaeology Museums:
1,
2,
3,
4.
Topkapı Palace:
1,
2,
3,
4,
5,
6,
7.
Nuruosmaniye Mosque:
1.
Hagia Eirene:
1,
2,
3,
4,
5,
6.
Sokollu Mehmed Pasha Mosque:
1,
2,
3.
Church of the Saints Sergius and Bacchus:
1,
2,
3.
Dolmabahçe Mosque:
1,
2,
3,
4,
5.
Sultan Ahmed Mosque:
1,
2,
3,
4,
5,
6,
7,
8,
9,
10
11,
12.
Boat trip on Bosporus:
1,
2,
3,
4,
5,
6,
7,
8.
Dolmabahçe Palace:
1,
2,
3,
4.
Galata Bridge:
1,
2,
3,
4,
5,
6,
7.
Galata Tower:
1,
2,
3,
4,
5,
6,
7,
8.
Church of the Holy Saviour in Chora:
1,
2,
3,
4,
5.
Eyüp Cemetery and
Pierre Loti Café:
1,
2,
3.
Fountain of Ahmed III:
1.
Grand Bazaar and
Spice Bazaar:
1,
2.
February 1: "General Bayesian theories and the emergence of the exclusivity principle", in collaboration with Giulio Chiribella, Matthias Kleinmann and Markus P. Müller (photo by Debbie Leung, in Hong Kong, in 2016), posted as arXiv:1901.11412.
The authors in Stellenbosch, South Africa, in 2017, and
in Linköping, Sweden, in 2015.
January 31-February 1: Quantum Optics and Information Meeting (KOBIT), Ankara.
Group photo,
lecture 1,
lecture 2,
Loophole.
Museum of Anatolian Civilizations:
1,
2.
Anıtkabir:
1,
2,
3.
January 30: "Necessary and sufficient condition for contextuality from incompatibility", in collaboration with Zhen-Peng Xu, accepted as a Rapid Communication in Phys. Rev. A.
January 19: Sad news: Mike Horne passed away. Here you can see Mike playing drums.
A photo with GHZ (Greenberger, Horne and Zeilinger) in Vienna, in May 2005, taken by Sebastián R. de Echaniz and this is a photo with Mike and John Clauser in Klosterneuburg (Austria), in June 2014, taken by Marissa Giustina.
January 7: "The thermodynamical cost of some interpretations of quantum theory. Reply to Prunkl and Timpson, and Davidsson", in collaboration with
Mile Gu,
Otfried Gühne,
Jan-Åke Larsson and
Karoline Wiesner, posted as arXiv:1901.00925.
Photo with Jan-Åke, Mile, Karoline and Otfried in Siegen, September 2014.
January 4-5: Cádiz.
Photos:
1,
2,
3.
January 2: Toledo.
Photos:
1,
2.
January 1: Happy 2019.
![2017 (A, O, M, [J], C)](http://edifisica.us.es/Adan/Carpetas/Diary/2017-10-13_120308.jpg){kind=link}
