Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hight temperature generation of entangled light in parametrically
  excited micro and nano-ring ressonators for integrated optics   We propose a physical scheme to generate entangled light at high temperatures
through the excitation of vacuum fluctuations of the electromagnetic field
using periodic modulations of a refractive index of a ring resonator. We
consider the processes of dissipation and decoherence resulting from the
coupling of the system with an environment at finite temperature and show that
the total amount of entanglement generated does not depend on the temperature,
which only affects the time necessary for the system to produce such an amount
of entanglement.

29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys