Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Relation between the usual and the entanglement temperature, in a simple
  quantum system   We develop a thermodynamical theory to describe the behavior of the
entanglement between a single two-level atom with a single mode of the
electromagnetic field. The resonant Jaynes-Cummings model is used to study both
the entanglement thermodynamics, in particular the entanglement temperature,
and its connection with the average number of photons in the optical cavity. We
find that this entanglement temperature has a strong dependence with the
initial conditions of the atom. We show that the entanglement temperature
between the photons and the atom defined in this work is the same temperature
obtained within the Jaynes-Cummings model at finite temperature developed in
the Thermo-Field Dynamics formalism.

8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
2
The categories of this paper are: math
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
23
The categories of this paper are: solv-int