Tuesday, July 23, 2013

1305.1969 (L. F. Buchmann et al.)

Phase Conjugation in Quantum Optomechanics    [PDF]

L. F. Buchmann, E. M. Wright, P. Meystre
We analyze the phase conjugate coupling of a pair of optomechanical oscillator modes driven by the time-dependent beat-note due to a two-color optical field. The dynamics of the direct and phase conjugate modes exhibit familiar time-reversed qualities, leading to opposite sign temperatures for the modes in the classical regime of operation, but these features are limited by quantum effects due to the non-commutative nature of quantum mechanical operators. The effects are measurable by read-out of the oscillator via a qubit. As a potential application of this system in sensing, we discuss a protocol applying phase-conjugate swaps to cancel external forces acting on the system.
View original: http://arxiv.org/abs/1305.1969

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