Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-mode squeezing operator in circuit QED   We theoretically investigate the implementation of the two-mode squeezing
operator in circuit quantum electrodynamics. Inspired by a previous scheme for
optical cavities [Phys. Rev. A $\textbf{73}$, 043803(2006)], we employ a
superconducting qubit coupled to two nondegenerate quantum modes and use a
driving field on the qubit to adequately control the resonator-qubit
interaction. Based on the generation of two-mode squeezed vacuum states,
firstly we analyze the validity of our model in the ideal situation and then we
investigate the influence of the dissipation mechanisms on the generation of
the two-mode squeezing operation, namely the qubit and resonator mode decays
and qubit dephasing. We show that our scheme allows the generation of highly
squeezed states even with the state-of-the-art parameters, leading to a
theoretical prediction of more than 10 dB of two-mode squeezing. Furthermore,
our protocol is able to squeeze an arbitrary initial state of the resonators,
which makes our scheme attractive for future applications in
continuous-variable quantum information processing and quantum metrology in the
realm of circuit quantum electrodynamics.

34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
19
The categories of this paper are: eess
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin