Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Mirjam Weilenmann"'
Autor:
Mirjam Weilenmann, Roger Colbeck
Publikováno v:
Quantum, Vol 4, p 236 (2020)
Causal structures give us a way to understand the origin of observed correlations. These were developed for classical scenarios, but quantum mechanical experiments necessitate their generalisation. Here we study causal structures in a broad range of
Externí odkaz:
https://doaj.org/article/c79d09df68264063880e32d8f12ae7a2
Autor:
Mirjam Weilenmann, Roger Colbeck
Publikováno v:
Quantum, Vol 2, p 57 (2018)
A causal structure is a relationship between observed variables that in general restricts the possible correlations between them. This relationship can be mediated by unobserved systems, modelled by random variables in the classical case or joint qua
Externí odkaz:
https://doaj.org/article/561627c0607d4fbcba75bd45949d553a
Nonlocal correlations are a central feature of quantum theory, and understanding why quantum theory has a limited amount of nonlocality is a fundamental problem. Since nonlocality also has technological applications, e.g., for device-independent cryp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ae4c3caa8df9f04104b97288f491516
Autor:
Marc-Olivier Renou, David Trillo, Mirjam Weilenmann, Thinh P. Le, Armin Tavakoli, Nicolas Gisin, Antonio Acín, Miguel Navascués
Publikováno v:
Nature
Nature, Vol. 600, No 7890 (2021) pp. 625-629
Nature, Vol. 600, No 7890 (2021) pp. 625-629
Although complex numbers are essential in mathematics, they are not needed to describe physical experiments, as those are expressed in terms of probabilities, hence real numbers. Physics, however, aims to explain, rather than describe, experiments th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3cb56b8c236abb6209b3843a24fe0a73
Publikováno v:
Nature Communications
Nature Communications, Vol 12, Iss 1, Pp 1-13 (2021)
Nature Communications, Vol 12, Iss 1, Pp 1-13 (2021)
A preparation game is a task whereby a player sequentially sends a number of quantum states to a referee, who probes each of them and announces the measurement result. Many experimental tasks in quantum information, such as entanglement quantificatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90f79ce1dfbaa24296060196cf8b1de9
https://pubmed.ncbi.nlm.nih.gov/35031613
https://pubmed.ncbi.nlm.nih.gov/35031613
Publikováno v:
Physical Review Letters. 125
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26d438c298e060a93209dd05be7fff9e
https://doi.org/10.1103/physrevlett.125.159903
https://doi.org/10.1103/physrevlett.125.159903
Autor:
Roger Colbeck, Mirjam Weilenmann
Correlation self-testing of a theory addresses the question of whether we can identify the set of correlations realisable in a theory from its performance in a particular information processing task. Applied to quantum theory it aims to identify an i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af6937778beaa7860a476edc3eb4b62b
https://eprints.whiterose.ac.uk/164204/1/article_game_PRA_resubmit14.pdf
https://eprints.whiterose.ac.uk/164204/1/article_game_PRA_resubmit14.pdf
Autor:
Roger Colbeck, Mirjam Weilenmann
Publikováno v:
Physical review letters. 125(6)
Self-testing usually refers to the task of taking a given set of observed correlations that are assumed to arise via a process that is accurately described by quantum theory, and trying to infer the quantum state and measurements. In other words it i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ff6030318e88a15561c65e3532e5bdc
https://pubmed.ncbi.nlm.nih.gov/32845669
https://pubmed.ncbi.nlm.nih.gov/32845669
Autor:
Miguel Navascués, Chuan-Feng Li, Yun-Feng Huang, Wen-Bo Xing, Bi-Heng Liu, Xiao-Min Hu, Xiaoqin Gao, Mirjam Weilenmann, Zizhu Wang, Yu Guo, Guang-Can Guo, Edgar A. Aguilar
Entanglement detection is one of the most conventional tasks in quantum information processing. While most experimental demonstrations of high-dimensional entanglement rely on fidelity-based witnesses, these are powerless to detect entanglement withi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::701aae6dff72023c653690a7be60f5e5
Autor:
Mirjam Weilenmann, Roger Colbeck
A central question for causal inference is to decide whether a set of correlations fit a given causal structure. In general, this decision problem is computationally infeasible and hence several approaches have emerged that look for certificates of c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2873c60326840069e8102df63c7c6394
http://arxiv.org/abs/1709.08988
http://arxiv.org/abs/1709.08988