Time refraction and the quantum properties of vacuum (8 pages)
Time refraction and the quantum properties of vacuum (8 pages)
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时间折射和真空的量子特性（8页）
DOI：
10.1103/physreva.72.063805
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发表时间：
2005
影响因子：
2.9
通讯作者：
J. T. Mendonça
中科院分区：
文献类型：
--
作者：
J. T. Mendonça
给出了一般非稳态介质中时间折射的经典理论和量子理论。经典方法推导出了时间折射系数的表达式，并给出了时间菲涅耳定律。量子公式导致瞬时波戈留波夫变换的推导和由介质中的时间变化从真空产生的光子对的数量的评估。讨论了边界条件的影响、该模型与动力学卡西米尔效应的联系以及来自超光速非加速光学边界的辐射。
We present the classical and quantum theory of time refraction in a generic nonstationary medium. The classical approach leads to expressions for the temporal refraction coefficient, and the temporal Fresnel laws are given. The quantum formulation leads to the derivation of instantaneous Bogoliubov transformations and the evaluation of the number of photon pairs created from vacuum by the temporal changes in the medium. The influence of boundary conditions, the connection of this model with the dynamical Casimir effect, and radiation from superluminal nonaccelerated optical boundaries is also discussed.