Parametrically amplified radiation in a cavity with an oscillating wall
Jeong-Young Ji, Kwang-Sup Soh
Abstract
We introduce a time-dependent perturbation method to calculate the number of created particles in a 1D cavity with an oscillating wall of the frequency Ω. This method makes it easy to find the dominant part of the solution which results from the parametric resonance. The maximal number of particles are created at the mode frequency Ω/2 . Using the Floquet theory, we discuss the long-time behavior of the particle creation.
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