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arXiv · 2012.02129

Dynamical Casimir effect in nonlinear vibrating cavities

Lianna A. Akopyan·Dmitrii A. Trunin
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Abstract

Nonlinear terms in the equations of motion can induce secularly growing loop corrections to correlation functions. Recently such corrections were shown to affect the particle production by a nonuniformly moving ideal mirror. We extend this conclusion to the cases of ideal vibrating cavity and single semitransparent mirror. These models provide natural IR and UV scales and allow a more accurate study of the loop behavior. In both cases we confirm that two-loop correction to the Keldysh propagator quadratically grows with time. This growth indicates a breakdown of the semiclassical approximation and emphasizes that bulk nonlinearities in the dynamical Casimir effect cannot be neglected for large evolution times.

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hep-thgr-qcquant-ph

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Lianna A. Akopyan, Dmitrii A. Trunin. 2020-12-03. Dynamical Casimir effect in nonlinear vibrating cavities. https://doi.org/10.1103/physrevd.103.065005

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