Quantum limit of laser cooling in dispersively and dissipatively coupled optomechanical systems

2013/04/30 by Talitha Weiss, Talitha Weiß, Andreas Nunnenkamp
Engineering · Mathematics · Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser #Laser cooling #Limit (mathematics) #Mathematics #Mechanical and Optical Resonators #Photonic and Optical Devices #Physics #Quantum #Quantum mechanics #cond-mat.mes-hall #quant-ph

paper · pdf · doi:10.1103/physreva.88.023850

published as Phys. Rev. A 88, 023850 (2013) · 4+1 pages, 3 figures

arxiv created 2013/08/25 · openalex publication_date 2013/08/27 · arxiv updated 2013/08/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Mechanical oscillators can be cooled by coupling them to an optical or microwave cavity. Going beyond the standard quantum noise approach, we find an analytic expression for the steady-state phonon number in systems where the position of the mechanical oscillator modulates the cavity frequency as well as the cavity linewidth. We trace the origin for the quantum limit of cooling to fluctuations in the optical force both at and away from the mechanical frequency. Finally, we calculate the minimal phonon number for the different types of couplings. Our study elucidates how to beneficially combine dispersive and dissipative optomechanical couplings.

Citations

• Quantum Noise Interference and Backaction Cooling in Cavity Nanomechanics
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• Cavity Optomechanics: Back-Action at the Mesoscale
• Dissipative Optomechanics in a Michelson-Sagnac Interferometer
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• Introduction to quantum noise, measurement, and amplification
• Strong-coupling effects in dissipatively coupled optomechanical systems