Nonlinear dynamics in superlattices driven by high frequency ac-fields

Details Nonlinear dynamics in superlattices driven by high frequency ac-fields Nonlinear dynamics in superlattices driven by high frequency ac-fields

1999-01-11

arxiv.org/abs/cond-mat/9901082v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

REVTEX (8 pages) and 4 figures (Postscript)

Scientific paper

10.1016/S0375-9601(99)00189-9

We investigate the dynamical processes taking place in nanodevices driven by high-frequency electromagnetic fields. We want to elucidate the role of different mechanisms that could lead to loss of quantum coherence. Our results show how the dephasing effects of disorder that destroy after some periods coherent oscillations, such as Rabi oscillations, can be overestimated if we do not consider the electron-electron interactions that can reduce dramatically the decoherence effects of the structural imperfections. Experimental conditions for the observation of the predicted effects are discussed.

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