Work

Ground-state cooling of a micromechanical oscillator: Comparing cold damping and cavity-assisted cooling schemes

Year: 2008

Type: article

Abstract: 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.

Source: Physical Review A

DOI: 10.1103/physreva.77.033804

Authors: C. Genes, D. Vitali, P. Tombesi, S. Gigan, M. Aspelmeyer

Institutions: Università di Camerino, National Interuniversity Consortium for the Physical Sciences of Matter, University of Vienna, Austrian Academy of Sciences

Language: English

Topic: Mechanical and Optical Resonators

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2246724019

FWCI: 19.5

Cites: 43

Cited by: 579

Related to: 10