Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Dourdent, Hippolyte"'
Publikováno v:
Quantum 8, 1514 (2024)
Causal nonseparability is the property underlying quantum processes incompatible with a definite causal order. So far it has remained a central open question as to whether any process with a clear physical realisation can violate a causal inequality,
Externí odkaz:
http://arxiv.org/abs/2308.12760
Autor:
Fellous-Asiani, Marco, Mothe, Raphaël, Bresque, Léa, Dourdent, Hippolyte, Camati, Patrice A., Abbott, Alastair A., Auffèves, Alexia, Branciard, Cyril
Publikováno v:
Phys. Rev. Research 5, 023111 (2023)
Quantum mechanics allows processes to be superposed, leading to a genuinely quantum lack of causal structure. For example, the process known as the quantum switch applies two operations ${\cal A}$ and ${\cal B}$ in a superposition of the two possible
Externí odkaz:
http://arxiv.org/abs/2208.01952
Publikováno v:
Phys. Rev. Lett. 129, 090402 (2022)
While the standard formulation of quantum theory assumes a fixed background causal structure, one can relax this assumption within the so-called process matrix framework. Remarkably, some processes, termed causally nonseparable, are incompatible with
Externí odkaz:
http://arxiv.org/abs/2107.10877
Publikováno v:
PRX Quantum 2, 030335 (2021)
Quantum supermaps are transformations that map quantum operations to quantum operations. It is known that quantum supermaps which respect a definite, predefined causal order between their input operations correspond to fixed-order quantum circuits. A
Externí odkaz:
http://arxiv.org/abs/2101.08796
Autor:
Dourdent, Hippolyte
Publikováno v:
In: Aguirre A., Merali Z., Sloan D. (eds) Undecidability, Uncomputability, and Unpredictability. The Frontiers Collection. Springer, Cham, 2021
What if the paradoxical nature of quantum theory could find its source in some undecidability analog to that of G\"odel's incompleteness theorem ? This essay aims at arguing for such G\"odelian hunch via two case studies. Firstly, using a narrative b
Externí odkaz:
http://arxiv.org/abs/2005.04274
Autor:
Dourdent, Hippolyte
The notion of contextuality, which emerges from a theorem established by Simon Kochen and Ernst Specker (1960-1967) and by John Bell (1964-1966), is certainly one of the most fundamental aspects of quantum weirdness. If it is a questioning on scholas
Externí odkaz:
http://arxiv.org/abs/1801.09768
Akademický článek
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Autor:
Dourdent, Hippolyte
The fundamental nature of causality has been challenged by quantum theory. In particular, recent developments have shown that by relaxing the standard assumption that quantum events are embedded in a fixed background causal structure, a new kind of c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______166::cc1f67906fc05b0ed53767e9cdeb1b64
https://theses.hal.science/tel-03771904
https://theses.hal.science/tel-03771904