Zobrazeno 1 - 10
of 2 563
pro vyhledávání: '"Holman R"'
Publikováno v:
JCAP 08 (2024) 042
We compute the rate with which unobserved fields decohere other fields to which they couple, both in flat space and in de Sitter space, for spectator scalar fields prepared in their standard adiabatic vacuum. The process is very efficient in de Sitte
Externí odkaz:
http://arxiv.org/abs/2403.12240
Autor:
Adil, Arsalan, Albrecht, Andreas, Baunach, Rose, Holman, R., Ribeiro, Raquel H., Richard, Benoit J.
The simplest single-field inflation models capture all the relevant contributions to the patterns in the Cosmic Microwave Background (CMB) observed today. A key assumption in these models is that the quantum inflationary fluctuations that source such
Externí odkaz:
http://arxiv.org/abs/2211.11079
Publikováno v:
JCAP 07 (2023) 022
We compute the rate with which super-Hubble cosmological fluctuations are decohered during inflation, by their gravitational interactions with unobserved shorter-wavelength scalar and tensor modes. We do so using Open Effective Field Theory methods,
Externí odkaz:
http://arxiv.org/abs/2211.11046
Publikováno v:
JHEP 02 (2023) 094
Loop corrections to finite-time correlation functions in quantum field theories away from equilibrium can be calculated using the in-in path integral approach. In this paper, we calculate the unequal-time two-point correlator for different massless s
Externí odkaz:
http://arxiv.org/abs/2206.11289
Publikováno v:
JHEP 02 (2023) 093
Loop corrections to unequal-time correlation functions in Minkowski spacetime exhibit secular growth due to a breakdown of time-dependent perturbation theory. This is analogous to secular growth in equal-time correlators on time-dependent backgrounds
Externí odkaz:
http://arxiv.org/abs/2206.11288
Publikováno v:
In Coastal Engineering June 2024 190
Publikováno v:
Fortschr. Phys. 2022, 2200019
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:
http://arxiv.org/abs/2106.10804
Publikováno v:
JHEP 08 (2021) 132
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:
http://arxiv.org/abs/2106.10803
Publikováno v:
JHEP 09 (2021) 006
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 interpreti
Externí odkaz:
http://arxiv.org/abs/2106.09854
Publikováno v:
JCAP 07 (2021) 050
To what extent can the Planck satellite observations be interpreted as confirmation of the quantum part of the inflationary paradigm? Has it "seen" the Bunch-Davies state? We compare and contrast the Bunch-Davies interpretation with one using a so-ca
Externí odkaz:
http://arxiv.org/abs/2104.13410