Open quantum dynamics of single-photon optomechanical devices

Details Open quantum dynamics of single-photon optomechanical devices Open quantum dynamics of single-photon optomechanical devices

2011-10-14

arxiv.org/abs/1110.3348v2

Physics

Quantum Physics

12 pages and 8 figures. Comments are welcome

Scientific paper

We study the open quantum dynamics in the nonlinear optomechanical device with a single photon recently investigated by Nunnenkamp et al. [Phys. Rev. Lett. 107, 063602 (2011)]. We consider the details of exchange of a single photon between the cavity mode and external continuous field. With an exact analytical solution, we present a rigorous study of the single-photon interferometer, studied previously by Marshall et al. [Phys. Rev. Lett. 91, 130401 (2003)], for investigating macroscopic quantum superposition of the mechanical oscillator. The resulting time evolution of the interference visibility displays interesting new features, and only in the limiting case of a short photon pulse input, it recovers the result of Marshall et al. Additionally, we consider the possibility of engineering arbitrary quantum states of the mechanical oscillator in such a nonlinear optomechanical device.

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