声致发光：含时介质泡QED真空的Bogolubov系数
Sonoluminescence: Bogolubov coefficients for the QED vacuum of a time-dependent dielectric bubble
摘要：
我们扩展了Schwinger的想法声致发光明确计算Bogolubov系数有关的QED真空状态与介电气泡的变化。折射率的突然（非绝热）变化导致有效产生具有宽带光谱的实光子，以及由介电常数的渐近行为引起的高频截止。
英文摘要：
We extend Schwinger's ideas regarding sonoluminescence by explicitly calculating the Bogolubov coefficients relating the QED vacuum states associated with changes in a dielectric bubble. Sudden (non-adiabatic) changes in the refractive index lead to an efficient production of real photons with a broadband spectrum, and a high-frequency cutoff that arises from the asymptotic behaviour of the dielectric constant.
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