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Open Quantum Systems Decoherence

On the environmental stability of quantum chaotic ratchets

arXiv
Authors: Gabriel G. Carlo, Leonardo Ermann, F. Borondo, R. M. Benito

Year

2010

Paper ID

11074

Status

Preprint

Abstract Read

~2 min

Abstract Words

115

Citations

N/A

Abstract

The transitory and stationary behavior of a quantum chaotic ratchet consisting of a biharmonic potential under the effect of different drivings in contact with a thermal environment is studied. For weak forcing and finite hbar, we identify a strong dependence of the current on the structure of the chaotic region. Moreover, we have determined the robustness of the current against thermal fluctuations in the very weak coupling regime. In the case of strong forcing, the current is determined by the shape of a chaotic attractor. In both cases the temperature quickly stabilizes the ratchet, but in the latter it also destroys the asymmetry responsible for the current generation. Finally, applications to isomerization reactions are discussed.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1009.5936 [2] arXiv https://arxiv.org/abs/1009.5936 [3] Publisher https://arxiv.org/abs/1009.5936

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