Back-action ground-state cooling of a micromechanical membrane via intensity-dependent interaction

Journal Article · Mon Aug 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.023803· OSTI ID:22068545

Barzanjeh, Sh ^[1]; Naderi, M H; Soltanolkotabi, M ^[2]

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1. Department of Physics, Faculty of Science, University of Isfahan, Hezar Jerib, 81746-73441, Isfahan (Iran, Islamic Republic of)
2. Department of Physics, Quantum Optics Group, Faculty of Science, University of Isfahan, Hezar Jerib, 81746-73441, Isfahan (Iran, Islamic Republic of)

We propose a theoretical scheme to show the possibility of achieving the quantum ground-state cooling of a vibrating micromechanical membrane inside a high-finesse optical cavity by a back-action cooling approach. The scheme is based on an intensity-dependent coupling of the membrane to the intracavity radiation pressure field. We find the exact expression for the position and momentum variances of the membrane by solving the linearized quantum Langevin equations in the steady state, conditioned by the Routh-Hurwitz criterion. We show that, by varying the Lamb-Dicke parameter and the membrane's reflectivity, one can effectively control the mean number of excitations of vibration of the membrane and can cool down the system to micro-Kelvin temperatures.

• OSTI ID: 22068545
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 84; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
COOLING
EXCITATION
GROUND STATES
INTERACTIONS
LANGEVIN EQUATION
MEMBRANES
RADIATION PRESSURE
REFLECTIVITY
STEADY-STATE CONDITIONS