Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Influence of Stark-shift on quantum coherence and non-classical
  correlations for two two-level atoms interacting with a single-mode cavity
  field   An exact analytic solution for two two-level atoms coupled with a
multi-photon single-mode electromagnetic cavity field in the presence of the
Stark shift is derived. We assume that the field is initially prepared in a
coherent state and the two atoms are initially prepared in an excited state.
Considering the atomic level shifts generated by the Stark shift effect, the
dynamical behavior of both quantum coherence (QC) measured using a quantum
Jensen-Shannon divergence and of quantum correlations captured by quantum
discord (QD) are investigated. It is shown that the intensity-dependent
Stark-shift in the cavity and the number of coherent state photons plays a key
role in enhancing or destroying both QC and QD during the process of intrinsic
decoherence. We remarked that increasing the Stark-shift parameters, the
frequencies of the transition for the mode of the cavity field, and photons
number destroy both the amount of QC and QD and effected their periodicity.
More importantly, QC and QD exhibit similar behavior and both show a revival
phenomenon. We believe that the present work shows that the quantum information
protocols based on physical resources in optical systems could be controlled by
adjusting the Stark-shift parameters.

8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
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
12
The categories of this paper are: nucl-th