Monday, October 8, 2012

1210.0070 (Xun-Wei Xu et al.)

Quantum coherence engineering of motional states in optomechanical
systems
   [PDF]

Xun-Wei Xu, Hui Wang, Jing Zhang, Yu-xi Liu
We propose to synthesize arbitrary nonclassical motional states in optomechanical systems by using sideband excitations, which is an extensively used method in experiments, e.g., ground state cooling of the mechanical resonator in optomechanical systems. We first demonstrate how the Hamiltonian of the optomechanical systems can be reduced to that of trapped ions in the strong single-photon coupling regime when the photon blockade occurs, and then show a method to achieve target states. We further analyze the effect of the photon leakage on the fidelity of the expected state due to small anharmonicity. Moreover, we also discuss the experimental feasibility and provide operational parameters using the current technology.
View original: http://arxiv.org/abs/1210.0070

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