Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical Casimir effect in nonlinear vibrating cavities   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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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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The categories of this paper are: adap-org
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
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The categories of this paper are: hep-lat
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The categories of this paper are: bayes-an
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The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: cond-mat
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The categories of this paper are: supr-con