Hits:

Indexed by:期刊论文

Date of Publication:2014-02-01

Journal:INTERNATIONAL JOURNAL OF QUANTUM INFORMATION

Included Journals:SCIE、Scopus

Volume:12

Issue:1

ISSN No.:0219-7499

Key Words:Cavity optomechanics; cooling micromechanical oscillator; three-level cascade atom

Abstract:We investigate the two-mode optomechanical cavity coupled with the three-level cascade atom. We propose a scheme to enhance the cooling of optomechanical oscillator by introducing atomic medium. Our results show that the existence of the atom can lead to a lower effective temperature of mechanical oscillator comparing to the case without atom. The coherence of the injected atomic affects the population of the photon, which can lead to the change in the radiation pressure on the movable mirror. We also show that the cooling of the mechanical oscillator is affected by initial state of inserting atom.