Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Position-dependent photon operators in the quantization of the
  electromagnetic field in dielectrics at local thermal equilibrium   It has very recently been suggested that asymmetric coupling of
electromagnetic fields to thermal reservoirs under nonequilibrium conditions
can produce unexpected oscillatory behavior in the local photon statistics in
layered structures. Better understanding of the predicted phenomena could
enable useful applications related to thermometry, noise filtering, and
enhancing optical interactions. In this work we briefly review the field
quantization and study the local steady state temperature distributions in
optical cavities formed of lossless and lossy media to show that also local
field temperatures exhibit oscillations that depend on position as well as the
photon energy.

30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
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: econ
23
The categories of this paper are: solv-int
8
The categories of this paper are: hep-ex
15
The categories of this paper are: nucl-ex
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The categories of this paper are: funct-an
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph