Classical-quantum correspondence for fields
Classical-quantum correspondence for fields
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场的经典量子对应
DOI:
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发表时间:
2018
影响因子:
6.4
通讯作者:
G. Zahariade
中科院分区:
文献类型:
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作者:
T. Vachaspati;G. Zahariade
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”).