Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of different entanglement measures of two three-level atoms
  interacting nonlinearly with a single-mode field   In this paper, we present a model which exhibits two identical $\Xi$-type
three-level atoms interacting with a single-mode field with $k$-photon
transition in an optical cavity enclosed by a Kerr medium. Considering full
nonlinear formalism, it is assumed that the single-mode field, atom-field
coupling and Kerr medium are all $f$-deformed. By using the adiabatic
elimination method, it is shown that, the Hamiltonian of the considered system
can be reduced to an effective Hamiltonian with two two-level atoms and
$f$-deformed Stark shift. In spite of the fact that, the system seems to be
complicated, under initial conditions which may be prepared for the atoms
(coherent superposition of their ground and upper states) and the field
(coherent state), the explicit form of the state vector of the entire system is
analytically obtained. Then, the entanglement dynamics between different
subsystems (i.e. "field-two atoms", "atom-(field+atom)" and "atom-atom") are
evaluated through appropriate measures like von Neumann entropy, tangle and
concurrence. In addition, the effects of intensity-dependent coupling, deformed
Kerr medium, detuning parameter, deformed Stark shift and multi-photon process
on the considered entanglement measures are numerically analyzed, in detail. It
is shown that the degree of entanglement between subsystems can be controlled
by selecting the evolved parameters, suitably. Briefly, the Kerr medium highly
decreases the amount of different considered measures of entanglement,
especially for two-photon transition. This destructive effect preserves even
when all other parameters are present, too. Furthermore, we find that the
so-called entanglement sudden death and birth can occur in the atom-atom
entanglement.

15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
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The categories of this paper are: atom-ph
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The categories of this paper are: q-fin
29
The categories of this paper are: funct-an