论文标题
在非线性谐振腔中增强粒子的创造
Enhancement of particle creation in nonlinear resonant cavities
论文作者
论文摘要
众所周知，在响应振荡腔中的粒子产生速率在大进化时间大约是恒定的。采用Schwinger-keldysh图解技术，我们表明非线性相互作用会产生非零量子平均值，并显着提高了这一速率。为了说明这一现象，我们考虑了一个无质量标量场，在一维腔中具有四分之一的相互作用，其完全反射的壁以基本频率的两倍振荡。
The rate of particle creation in a resonantly oscillating cavity is known to be approximately constant at large evolution times. Employing the Schwinger-Keldysh diagrammatic technique, we show that nonlinear interactions generate nonzero quantum averages and significantly enhance this rate. To illustrate this phenomenon, we consider a massless scalar field with a quartic interaction in a one-dimensional cavity with perfectly reflecting walls oscillating at twice the fundamental frequency.
