Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Entanglement dynamics of two two-level atoms in the vicinity of an
  invisibility cloak   We study the entanglement between two identical two-level atoms located near
an ideal model of invisibility cloaks, by monitoring the the time evolution of
the concurrence measure. We obtain the reduced density operator of the atomic
subsystem based on a canonical quantization scheme presented for the
electromagnetic field interacting with atomic systems in the presence of an
anisotropic, inhomogeneous and absorbing magnetodielectric medium. It is shown
that two atoms, which are prepared initially in an unentangled state, are
correlated in weak coupling regime via the spontaneous emission and the
dipole-dipole interaction of two atoms mediated by the invisibility cloak. We
therefore find that the invisibility cloak, independent of the hidden object,
works fairly well at frequencies far from the resonance frequency of the object
and the cloak, whereas near the resonance frequency, the hidden object becoming
detectable due to a sharp reduction of the concurrence.

22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
4
The categories of this paper are: cond-mat
23
The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
1
The categories of this paper are: cs
31
The categories of this paper are: ao-sci
32
The categories of this paper are: atom-ph