Zobrazeno 1 - 10
of 451
pro vyhledávání: '"C.P. Burgess"'
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 9, Pp 1-61 (2021)
Abstract Effective theories are being developed for fields outside black holes, often with an unusual open-system feel due to the influence of large number of degrees of freedom that lie out of reach beyond the horizon. What is often difficult when i
Externí odkaz:
https://doaj.org/article/484c2f2007bc467484ba68c5489b1e02
Autor:
Greg Kaplanek, C.P. Burgess
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 2, Pp 1-41 (2020)
Abstract Temporal evolution of a comoving qubit coupled to a scalar field in de Sitter space is studied with an emphasis on reliable extraction of late-time behaviour. The phenomenon of critical slowing down is observed if the effective mass is chose
Externí odkaz:
https://doaj.org/article/b82edcf299d14e9aabb61a51ef68080a
Publikováno v:
Journal of High Energy Physics, Vol 2017, Iss 4, Pp 1-35 (2017)
Abstract Singular potentials (the inverse-square potential, for example) arise in many situations and their quantum treatment leads to well-known ambiguities in choosing boundary conditions for the wave-function at the position of the potential’s s
Externí odkaz:
https://doaj.org/article/0ae060a46d2a46b99d19246e4bac802b
Autor:
Greg Kaplanek, C.P. Burgess
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 1, Pp 1-31 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
We examine the late-time evolution of a qubit (or Unruh-De Witt detector) that hovers very near to the event horizon of a Schwarzschild black hole, while interacting with a free quantum scalar field. The calculation is carried out perturbatively in t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::925b41561aa59492a279f4c39ef61448
https://doaj.org/article/5dcc85c787a946c29cee5aeadd355962
https://doaj.org/article/5dcc85c787a946c29cee5aeadd355962
Autor:
C.P. Burgess, F. Quevedo
Cosmologically active Brans-Dicke (or dilaton) scalar fields are generically ruled out by solar system tests of gravity unless their couplings to ordinary matter are much suppressed relative to gravitational strength, and this is a major hindrance wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aae2c1621db191bc76f81332ff67e2ef
http://arxiv.org/abs/2110.10352
http://arxiv.org/abs/2110.10352
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Effective theories describing black hole exteriors resemble open quantum systems inasmuch as many unmeasurable degrees of freedom beyond the horizon interact with those we can see. A solvable Caldeira-Leggett type model of a quantum field that mixes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f08af0e3a4fafcca23db57ae79d31e37
http://arxiv.org/abs/2106.10804
http://arxiv.org/abs/2106.10804
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 8, Pp 1-36 (2021)
Journal of High Energy Physics
Journal of High Energy Physics
Effective theories describing black hole exteriors contain many open-system features due to the large number of gapless degrees of freedom that lie beyond reach across the horizon. A simple solvable Caldeira-Leggett type model of a quantum field inte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19e0cecf9c62f5dc1aca98a30bb08cab