Hybrid optomechanical cooling by atomicΛsystems
Autor: | L. F. Buchmann, Mukund Vengalattore, Swati Singh, Francesco Bariani, Pierre Meystre |
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Rok vydání: | 2014 |
Předmět: |
Physics
Mesoscopic physics Condensed matter physics business.industry Physics::Optics Degrees of freedom (mechanics) 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Resonator Hybrid system 0103 physical sciences Quantum system Optoelectronics 010306 general physics Ground state business Quantum Spin-½ |
Zdroj: | Physical Review A. 90 |
ISSN: | 1094-1622 1050-2947 |
DOI: | 10.1103/physreva.90.033838 |
Popis: | We investigate a hybrid quantum system consisting of a cavity optomechanical device optically coupled to an ultracold quantum gas. We show that the dispersive properties of the ultracold gas can be used to dramatically modify the optomechanical response of the mechanical resonator. We examine hybrid schemes wherein the mechanical resonator is coupled either to the motional or the spin degrees of freedom of the ultracold gas. In either case, we find an enhancement of more than two orders of magnitude in optomechanical cooling due to this hybrid interaction. Significantly, based on demonstrated parameters for the cavity optomechanical device, we identify regimes that enable the ground state cooling of the resonator from room temperature. In addition, the hybrid system considered here represents a powerful interface for the use of an ultracold quantum gas for state preparation, sensing and quantum manipulation of a mesoscopic mechanical resonator. |
Databáze: | OpenAIRE |
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