Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Photon-assisted entanglement and squeezing generation and decoherence
  suppression via a quadratic optomechanical coupling   Entanglement and quantum squeezing have wide applications in quantum
technologies due to their non-classical characteristics. Here we study
entanglement and quantum squeezing in an open spin-optomechanical system, in
which a Rabi model (a spin coupled to the mechanical oscillator) is coupled to
an ancillary cavity field via a quadratic optomechanical coupling. We find that
their performances can be significantly modulated via the photon of the
ancillary cavity, which comes from photon-dependent spin-oscillator coupling
and detuning. Specifically, a fully switchable spin-oscillator entanglement can
be achieved, meanwhile a strong mechanical squeezing is also realized.
Moreover, we study the environment-induced decoherence and dissipation, and
find that they can be mitigated by increasing the number of photons. This work
provides an effective way to manipulate entanglement and quantum squeezing and
to suppress decoherence in the cavity quantum electrodynamics with a quadratic
optomechanics.

9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
23
The categories of this paper are: solv-int
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
27
The categories of this paper are: comp-gas
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs