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Title: Classical-quantum correspondence for fields

Journal Article · · Journal of Cosmology and Astroparticle Physics
 [1];  [1]
  1. Arizona State Univ., Tempe, AZ (United States)
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Here, we map the quantum problem of a free bosonic field in a space-time dependent background into a classical problem. N degrees of freedom of a real field in the quantum theory are mapped into 2N2 classical simple harmonic oscillators with specific initial conditions. We discuss how this classical-quantum correspondence (CQC) may be used to evaluate quantum radiation and fully treat the backreaction of quantum fields on classical backgrounds. The technique has widespread application, including to the quantum evaporation of classical breathers ("oscillons").

Research Organization:
Arizona State Univ., Tempe, AZ (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); John Templeton Foundation
Grant/Contract Number:
SC0019470; 60253
OSTI ID:
1613247
Journal Information:
Journal of Cosmology and Astroparticle Physics, Vol. 2019, Issue 09; ISSN 1475-7516
Publisher:
Institute of Physics (IOP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 11 works
Citation information provided by
Web of Science

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Cited By (4)

Rolling classical scalar field in a linear potential coupled to a quantum field journal November 2019
Emergence of classical structures from the quantum vacuum journal September 2020
Canonical description of cosmological backreaction text January 2020
Quasiclassical solutions for static quantum black holes preprint January 2020

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Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
astronomy & astrophysics
physics