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Quantum dynamics of anharmonic oscillators | | C. Joshi
; M. Jonson
; E. Andersson
; P. Ohberg
; | | Date: |
11 May 2011 | | Abstract: | We investigate the quantum dynamics of anharmonic oscillators with quartic
potentials. We consider the interaction of such oscillators with an effective
two-level system and show that the indirect interaction between the oscillators
mediated via the two-level system leads to time-varying entanglement. This
entanglement is found to be strongly enhanced due to the nonlinear dynamics of
the oscillators. We further illustrate the effect of nonlinearities by studying
the coupling between a nonlinear oscillator and a cavity field, where we
present a full analytical treatment which is valid in the weakly non-linear and
low radiation pressure coupling regime. We show that two such cavity modes
interacting with an anharmonic oscillator exhibit a time-varying entanglement. | | Source: | arXiv, 1105.2256 | | Services: | Forum | Review | PDF | Favorites | |
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