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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.


Related in: MedlinePlus

The steady-state amplitudes /α/ and β versus the driving power P.The cavity decay rate is chosen to be κ = 0.1ωm.
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f5: The steady-state amplitudes /α/ and β versus the driving power P.The cavity decay rate is chosen to be κ = 0.1ωm.

Mentions: In addition, considering the situation of the smaller cavity decay rate κ = 0.1 ωm. The relationship between the steady-state amplitudes (/α/, /β/) and driving power P is shown in Fig. 5 and the relationship between the steady-state variance and effective detuning is shown in Fig. 6 (here we calculate the steady-state variance of the mechanical displacement quadrature X numerically by setting P = 5 mW, /α/ = 680, and β = 330), respectively. At the optimal detuning point , the steady-state variance of the displacement quadrature is 〈δX2〉 = e−2ζ = 0.65.


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)

The steady-state amplitudes /α/ and β versus the driving power P.The cavity decay rate is chosen to be κ = 0.1ωm.
© Copyright Policy - open-access
Related In: Results  -  Collection

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

f5: The steady-state amplitudes /α/ and β versus the driving power P.The cavity decay rate is chosen to be κ = 0.1ωm.
Mentions: In addition, considering the situation of the smaller cavity decay rate κ = 0.1 ωm. The relationship between the steady-state amplitudes (/α/, /β/) and driving power P is shown in Fig. 5 and the relationship between the steady-state variance and effective detuning is shown in Fig. 6 (here we calculate the steady-state variance of the mechanical displacement quadrature X numerically by setting P = 5 mW, /α/ = 680, and β = 330), respectively. At the optimal detuning point , the steady-state variance of the displacement quadrature is 〈δX2〉 = e−2ζ = 0.65.

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.


Related in: MedlinePlus