Zobrazeno 1 - 10
of 1 323
pro vyhledávání: '"quantum fields"'
Autor:
Pearle, Philip, author
Publikováno v:
Introduction to Dynamical Wave Function Collapse : Realism in Quantum Physics: Volume 1, 2024.
Externí odkaz:
https://doi.org/10.1093/oso/9780198901372.003.0011
Publikováno v:
Universe, Vol 10, Iss 9, p 365 (2024)
We investigate the implications of different quantization approaches in Loop Quantum Cosmology for the primordial power spectrum of tensor modes. Specifically, we consider the hybrid and dressed metric approaches to derive the effective mass that gov
Externí odkaz:
https://doaj.org/article/00d9f4a7f6f148f1804718cb0fea8faa
Autor:
Thomas Thiemann
Publikováno v:
Universe, Vol 10, Iss 9, p 372 (2024)
In a seminal work, Hawking showed that natural states for free quantum matter fields on classical spacetimes that solve the spherically symmetric vacuum Einstein equations are KMS states of non-vanishing temperature. Although Hawking’s calculation
Externí odkaz:
https://doaj.org/article/ab0cda1631794295acc7130f87c11464
Autor:
Roberto Balbinot, Alessandro Fabbri
Publikováno v:
Physics, Vol 5, Iss 4, Pp 968-982 (2023)
We analyze the correlations functions across the horizon in Hawking black hole radiation to reveal the correlations between Hawking particles and their partners. The effects of the underlying space–time on this are shown in various examples ranging
Externí odkaz:
https://doaj.org/article/656232f350e04555b041aff4ab65202c
Autor:
Ramon F. Álvarez-Estrada
Publikováno v:
Dynamics, Vol 3, Iss 2, Pp 345-378 (2023)
Non-equilibrium evolution at absolute temperature T and approach to equilibrium of statistical systems in long-time (t) approximations, using both hierarchies and functional integrals, are reviewed. A classical non-relativistic particle in one spatia
Externí odkaz:
https://doaj.org/article/0351943b85394751a41bbf83ec3781e0
Publikováno v:
Universe, Vol 10, Iss 7, p 281 (2024)
In this work, we utilize the dynamic invariant method to obtain a solution for the time-dependent Schrödinger equation, aiming to explore the quantum theory of a p-form gauge field propagating in D-dimensional de Sitter spacetimes. Thus, we present
Externí odkaz:
https://doaj.org/article/9dbb4eb004454cbb9f309bd6f1303c5d
Akademický článek
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Publikováno v:
Frontiers in Physics, Vol 11 (2023)
We consider a quantum Otto engine using an Unruh-DeWitt particle detector model which interacts with a quantum scalar field in curved spacetime. We express a generic condition for extracting positive work in terms of the effective temperature of the
Externí odkaz:
https://doaj.org/article/ea87cd1bb115465b8bba6fec6b5d1bf6
Akademický článek
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