Phys. Rev. A 77, 033804 (2008) [9 pages]Ground-state cooling of a micromechanical oscillator: Comparing cold damping and cavity-assisted cooling schemesSee Also: Erratum Received 11 May 2007; published 3 March 2008 We provide a general framework to describe cooling of a micromechanical oscillator to its quantum ground state by means of radiation-pressure coupling with a driven optical cavity. We apply it to two experimentally realized schemes, back-action cooling via a detuned cavity and cold-damping quantum-feedback cooling, and we determine the ultimate quantum limits of both schemes for the full parameter range of a stable cavity. While both allow one to reach the oscillator’s quantum ground state, we find that back-action cooling is more efficient in the good cavity limit, i.e., when the cavity bandwidth is smaller than the mechanical frequency, while cold damping is more suitable for the bad cavity limit. The results of previous treatments are recovered as limiting cases of specific parameter regimes. © 2008 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.77.033804
DOI:
10.1103/PhysRevA.77.033804
PACS:
42.50.Lc, 42.79.Gn, 85.85.+j
See AlsoErratum: C. Genes, D. Vitali, P. Tombesi, S. Gigan, and M. Aspelmeyer, Erratum: Ground-state cooling of a micromechanical oscillator: Comparing cold damping and cavity-assisted cooling schemes [Phys. Rev. A 77, 033804 (2008)], Phys. Rev. A 79, 039903 (2009). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.