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pro vyhledávání: '"Galley, Thomas"'
In this work we present a hierarchy of generalized contextuality. It refines the traditional binary distinction between contextual and noncontextual theories, and facilitates their comparison based on how contextual they are. Our approach focuses on
Externí odkaz:
http://arxiv.org/abs/2406.00717
Autor:
Aloy, Albert, Galley, Thomas D., Jones, Caroline L., Ludescher, Stefan L., Mueller, Markus P.
How can detector click probabilities respond to spatial rotations around a fixed axis, in any possible physical theory? Here, we give a thorough mathematical analysis of this question in terms of "rotation boxes", which are analogous to the well-know
Externí odkaz:
http://arxiv.org/abs/2312.09278
Adrian Kent has recently presented a critique [arXiv:2307.06191] of our paper [Nat. Comms. 10, 1361 (2019)] in which he claims to refute our main result: the measurement postulates of quantum mechanics can be derived from the rest of postulates, once
Externí odkaz:
http://arxiv.org/abs/2309.01650
Publikováno v:
Quantum 7, 1142 (2023)
When gravity is sourced by a quantum system, there is tension between its role as the mediator of a fundamental interaction, which is expected to acquire nonclassical features, and its role in determining the properties of spacetime, which is inheren
Externí odkaz:
http://arxiv.org/abs/2301.10261
In a recent comment on the arXiv, Blake C. Stacey criticizes our derivation of the quantum state update rule in Nat. Commun. 10, 1361 (2019). Here we argue that the criticism is unfounded. In particular, and in contrast to Stacey's claims, our proof
Externí odkaz:
http://arxiv.org/abs/2212.03629
Autor:
de la Hamette, Anne-Catherine, Galley, Thomas D., Hoehn, Philipp A., Loveridge, Leon, Mueller, Markus P.
In the absence of external relata, internal quantum reference frames (QRFs) appear widely in the literature on quantum gravity, gauge theories and quantum foundations. Here, we extend the perspective-neutral approach to QRF covariance to general unim
Externí odkaz:
http://arxiv.org/abs/2110.13824
Autor:
Ahmad, Shadi Ali, Galley, Thomas D., Hoehn, Philipp A., Lock, Maximilian P. E., Smith, Alexander R. H.
Publikováno v:
Phys. Rev. Lett. 128, 170401 (2022)
One of the most basic notions in physics is the partitioning of a system into subsystems, and the study of correlations among its parts. In this work, we explore these notions in the context of quantum reference frame (QRF) covariance, in which this
Externí odkaz:
http://arxiv.org/abs/2103.01232
Publikováno v:
npj Quantum Inf 8, 76 (2022)
We present the first instance where post-quantum steering is a stronger-than-quantum resource for information processing -- remote state preparation. In addition, we show that the phenomenon of post-quantum steering is not just a mere mathematical cu
Externí odkaz:
http://arxiv.org/abs/2102.06581
Publikováno v:
Quantum 6, 779 (2022)
Recently, table-top experiments involving massive quantum systems have been proposed to test the interface of quantum theory and gravity. In particular, the crucial point of the debate is whether it is possible to conclude anything on the quantum nat
Externí odkaz:
http://arxiv.org/abs/2012.01441
Publikováno v:
Quantum 4, 367 (2020)
A fully relational quantum theory necessarily requires an account of changes of quantum reference frames, where quantum reference frames are quantum systems relative to which other systems are described. By introducing a relational formalism which id
Externí odkaz:
http://arxiv.org/abs/2004.14292