Zobrazeno 1 - 10
of 2 651
pro vyhledávání: '"dissipative systems"'
Autor:
Wen-Mei Li, Shu-Min Wu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-20 (2024)
Abstract We study the N-partite coherences of GHZ and W states for free bosonic and fermionic fields when any n observers hover near the event horizon of a Garfinkle-Horowitz-Strominger (GHS) dilaton black hole. We derive the more general analytical
Externí odkaz:
https://doaj.org/article/0607707aeb284e58bade154e868bb080
Autor:
Siddharth Jindal, Pavan Hosur
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-59 (2024)
Abstract The eigenstate thermalization hypothesis (ETH) is the leading conjecture for the emergence of statistical mechanics in generic isolated quantum systems and is formulated in terms of the matrix elements of operators. An analog known as the er
Externí odkaz:
https://doaj.org/article/53eb0418928e4295a007f7a0d7883ef1
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 8, Pp 1-43 (2024)
Abstract We study the dynamics of a quantum system in thermal equilibrium that is suddenly coupled to a bath at a different temperature, a situation inspired by a particular black hole evaporation protocol. We prove a universal positivity bound on th
Externí odkaz:
https://doaj.org/article/1ea9d002e26e4e8c872740c807f63114
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 7, Pp 1-16 (2024)
Abstract We study quantum steering and Bell nonlocality harvested by the local interaction of two Unruh-DeWitt detectors with the vacuum massless scalar field, both in the presence of gravitational waves and in Minkowski spacetime. It is shown that q
Externí odkaz:
https://doaj.org/article/783cb095708f412c9e7ef010c7efb6ba
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 6, Pp 1-27 (2024)
Abstract We investigate the entanglement harvesting phenomenon for static detectors that locally interact with massless scalar fields in the cosmic string spacetime, which, though locally flat, features a conical structure defined by a deficit angle.
Externí odkaz:
https://doaj.org/article/6cebbba190f140c8ba36c7b253f2d944
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-32 (2024)
Abstract The mutual information characterizes correlations between spatially separated regions of a system. Yet, in experiments we often measure dynamical correlations, which involve probing operators that are also separated in time. Here, we introdu
Externí odkaz:
https://doaj.org/article/a786d38fb6a94e40bb6287dbcc12a7f8
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-24 (2024)
Abstract In this work, we extend previous results, demonstrating how complexity in an open quantum system can identify decoherence between two fields, even in the presence of an accelerating background. Using the curved-space Caldeira-Leggett two-fie
Externí odkaz:
https://doaj.org/article/54e6324da1f34bafa5cecbaff0764208
Autor:
Tao Li, Lei-Hua Liu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-29 (2024)
Abstract In this work, we have systematically investigated the Krylov complexity of curvature perturbation for the modified dispersion relation in inflation, using the algorithm in closed system and open system. Since many quantum gravitational frame
Externí odkaz:
https://doaj.org/article/3908e447413642f5a3bbea0f2a4c2365
Autor:
Shih-Yuin Lin, Bei-Lok Hu
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 4, Pp 1-45 (2024)
Abstract Conventional formulation of QED since the 50s works very well for stationary states and for scattering problems, but with newly arisen challenges from the 80s on, where real time evolution of particles in a nonequilibrium setting are require
Externí odkaz:
https://doaj.org/article/a7edd59e62494d46b19bd376239662d1
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-43 (2024)
Abstract Using spread complexity and spread entropy, we study non-unitary quantum dynamics. For non-hermitian Hamiltonians, we extend the bi-Lanczos construction for the Krylov basis to the Schrödinger picture. Moreover, we implement an algorithm ad
Externí odkaz:
https://doaj.org/article/9849db4d5bec4648afc1ae8fb1e6f8d0