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arXiv · 1302.1449

Quantum Excitations in Time-Dependent Backgrounds

Matthew Kolopanis·Tanmay Vachaspati
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Abstract

We give a technique for calculating the occupation number of quantum fields in time-dependent backgrounds by using the relation between one-dimensional {\em quantum} oscillators and two-dimensional {\em classical} oscillators. We illustrate our method by giving closed analytical results for the time-dependent spectrum of occupation numbers during gravitational collapse in 3+1 dimensions.

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Matthew Kolopanis, Tanmay Vachaspati. 2013-05-01. Quantum Excitations in Time-Dependent Backgrounds. https://doi.org/10.1103/physrevd.87.085041

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