Controlling Excitation Inversion of a Cooper Pair Box Interacting with a Nanomechanical Resonator
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Data
2012-08-01
Autores
Valverde, C. [UNESP]
de Oliveira, H. C. B.
Avelar, A. T.
Baseia, B.
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Iop Publishing Ltd
Resumo
We investigate the action of time-dependent detunings upon the excitation inversion of a Cooper pair box interacting with a nanomechanical resonator. The method employs the Jaynes-Cummings model with damping, assuming different decay rates of the Cooper pair box and various fixed and time-dependent detunings. It is shown that, when the presence of damping plus constant detunings destroys the collapse/revival effects, convenient choices of time-dependent detunings allow one to reconstruct such events in a perfect way. It is also shown that the mean excitation of the nanomechanical resonator is more robust against damping of the Cooper pair box for convenient values of time-dependent detunings.
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Chinese Physics Letters. Bristol: Iop Publishing Ltd, v. 29, n. 8, p. 5, 2012.