Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Atom-assisted quadrature squeezing of a mechanical oscillator inside a
  dispersive cavity   We present a hybrid optomechanical scheme to achieve dynamical squeezing of
position quadrature of a mesoscopic mechanical oscillator, that can be
externally controlled by classical fields. A membrane-in-the-middle set up is
employed, in which an atom in $\Lambda$ configuration is considered to be
trapped on either side of the membrane inside the cavity. We show that a
considerable amount of squeezing (beyond the 3 dB limit) can be achieved that
is not affected by the decay of the cavity and the spontaneous emission of the
atom. Squeezing depends upon the initial preparation of atomic states. Further,
a strong effective coupling between the atom and the oscillator can be attained
by using large control fields that pump the atom and the cavity. Effect of
thermal phononic bath on squeezing is studied in terms of the squeezing
spectrum. The results are supported by the detailed analytical calculations.

14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
22
The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex