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
G. Zahariade
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Vachaspati;G. Zahariade

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我们将时空相关背景下自由玻色子场的量子问题映射为经典问题。将量子理论中真实的场的N个自由度映射到具有特定初始条件的2N ~ 2个经典简谐振子中。我们讨论了如何使用这种经典量子对应(CQC)来评估量子辐射,并充分处理量子场在经典背景下的逆反应。该技术具有广泛的应用,包括经典呼吸子(“呼吸子”)的量子蒸发。
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”).