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Steady-state mechanical squeezing in a hybrid atom-optomechanical system with a highly dissipative cavity.

Wang DY, Bai CH, Wang HF, Zhu AD, Zhang S - Sci Rep (2016)

Bottom Line: Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces.The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically.The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, China.

ABSTRACT
Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces. Here we give a theoretical study of a hybrid atom-optomechanical system in which the steady-state squeezing of the mechanical resonator can be generated via the mechanical nonlinearity and cavity cooling process. The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically. The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.

No MeSH data available.


Schematic diagram of a hybrid atom-optomechanical system with a cloud of identical two-level atoms trapped in an optical cavity consisting of a fixed mirror and a movable mirror.The cavity mode is coherently driven by an input laser with frequency ωd.
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f1: Schematic diagram of a hybrid atom-optomechanical system with a cloud of identical two-level atoms trapped in an optical cavity consisting of a fixed mirror and a movable mirror.The cavity mode is coherently driven by an input laser with frequency ωd.

Mentions: We consider a hybrid atom-optomechanical system depicted in Fig. 1, in which N identical two-level atoms are trapped in the optical cavity consisting of a fixed mirror and a movable mirror. The total Hamiltonian H = H0 + Hpump, which describes the hybrid system, consists of three parts, which reads ( = 1), respectively,


Steady-state mechanical squeezing in a hybrid atom-optomechanical system with a highly dissipative cavity.

Wang DY, Bai CH, Wang HF, Zhu AD, Zhang S - Sci Rep (2016)

Schematic diagram of a hybrid atom-optomechanical system with a cloud of identical two-level atoms trapped in an optical cavity consisting of a fixed mirror and a movable mirror.The cavity mode is coherently driven by an input laser with frequency ωd.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4835766&req=5

f1: Schematic diagram of a hybrid atom-optomechanical system with a cloud of identical two-level atoms trapped in an optical cavity consisting of a fixed mirror and a movable mirror.The cavity mode is coherently driven by an input laser with frequency ωd.
Mentions: We consider a hybrid atom-optomechanical system depicted in Fig. 1, in which N identical two-level atoms are trapped in the optical cavity consisting of a fixed mirror and a movable mirror. The total Hamiltonian H = H0 + Hpump, which describes the hybrid system, consists of three parts, which reads ( = 1), respectively,

Bottom Line: Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces.The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically.The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, College of Science, Yanbian University, Yanji, Jilin 133002, China.

ABSTRACT
Quantum squeezing of mechanical resonator is important for studying the macroscopic quantum effects and the precision metrology of weak forces. Here we give a theoretical study of a hybrid atom-optomechanical system in which the steady-state squeezing of the mechanical resonator can be generated via the mechanical nonlinearity and cavity cooling process. The validity of the scheme is assessed by simulating the steady-state variance of the mechanical displacement quadrature numerically. The scheme is robust against dissipation of the optical cavity, and the steady-state squeezing can be effectively generated in a highly dissipative cavity.

No MeSH data available.