期刊
PHYSICAL REVIEW A
卷 83, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.83.013803
关键词
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资金
- Alexander von Humboldt Foundation
- Elite Network of Bavaria (ENB)
- DFG [DFG-FOR635]
- EU
- Spanish Ministry of Sciences [TEC2007-60186/MIC, CSD2007-046-NanoLight.es]
- Fundacio CELLEX Barcelona, Caixa Manresa
- Austrian Science Fund (projects START, SFB FOQUS)
- European Research Council (ERC)
- European Commission
- Foundational Questions Institute FQXi
- ICREA Funding Source: Custom
- Austrian Science Fund (FWF) [Y 414] Funding Source: researchfish
We provide a general quantum theory to describe the coupling of light with the motion of a dielectric object inside a high-finesse optical cavity. In particular, we derive the total Hamiltonian of the system as well as a master equation describing the state of the center-of-mass mode of the dielectric and the cavity-field mode. In addition, a quantum theory of elasticity is used to study the coupling of the center-of-mass motion with internal vibrational excitations of the dielectric. This general theory is applied to the recent proposal of using an optically levitating nanodielectric as a cavity optomechanical system [see Romero-Isart et al., New J. Phys. 12, 033015 (2010); Chang et al., Proc. Natl. Acad. Sci. USA 107, 1005 (2010)]. On this basis, we also design a light-mechanics interface to prepare non-Gaussian states of the mechanical motion, such as quantum superpositions of Fock states. Finally, we introduce a direct mechanical tomography scheme to probe these genuine quantum states by time-of-flight experiments.
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