Classical-quantum correspondence for fields
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-quant...
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Published in | Journal of cosmology and astroparticle physics Vol. 2019; no. 9; p. 15 |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
Bristol
IOP Publishing
04.09.2019
Institute of Physics (IOP) |
Subjects | |
Online Access | Get full text |
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Summary: | 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”). |
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Bibliography: | SC0019470; 60253 John Templeton Foundation USDOE Office of Science (SC), High Energy Physics (HEP) |
ISSN: | 1475-7516 1475-7516 |
DOI: | 10.1088/1475-7516/2019/09/015 |