Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Chirp effects on pair production in oscillating electric fields with
  spatial inhomogeneity   Dirac-Heisenberg-Wigner formalism is used to study chirp effects on the
vacuum pair creation under inhomogeneous electric fields. For rapidly
oscillating electric fields, the particle momentum spectrum is sensitive to
both of the spatial scale and the chirp parameter, and the external field width
has less significant effect for the maximally large chirp. For slowly
oscillating electric fields, chirp effects could be identified at large spatial
extents and the carrier phase plays a significant role reflecting chirp effects
even at small spatial scales. We also notice that, the local density
approximation holds for all external field profiles considered in this work at
the quasihomogeneous limit allowing one to use arguments from homogeneous
scenarios to analyze inhomogeneous results.

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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
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The categories of this paper are: econ
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The categories of this paper are: funct-an
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
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The categories of this paper are: q-fin