Quantum coherence, correlated noise and Parrondo games

Details Quantum coherence, correlated noise and Parrondo games Quantum coherence, correlated noise and Parrondo games

2002-10-26

arxiv.org/abs/quant-ph/0210185v1

Fluctuation and Noise Letters, vol.2, no.4, L293 (2002)

Physics

Quantum Physics

8 pages

Scientific paper

10.1142/S0219477502000920

We discuss the effect of correlated noise on the robustness of quantum coherent phenomena. First we consider a simple, toy model to illustrate the effect of such correlations on the decoherence process. Then we show how decoherence rates can be suppressed using a Parrondo-like effect. Finally, we report the results of many-body calculations in which an experimentally-measurable quantum coherence phenomenon is significantly enhanced by non-Markovian dynamics arising from the noise source.

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