Spatially Dependent Decoherence and Anomalous Diffussion of Quantum Walks
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Spatially Dependent Decoherence and Anomalous Diffussion of Quantum Walks

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Spatially Dependent Decoherence and Anomalous Diffussion of Quantum Walks

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Pérez Cañellas, Armando; Romanelli, A.
Aquest document és un/a article, creat/da en: 2013
We analyze the long time behavior of a discrete time quantum walk subject to decoherence with a strong spatial dependence, acting on one half of the lattice. We show that, except for limiting cases on the decoherence parameter, the quantum walk at late times behaves sub-ballistically, meaning that the characteristic features of the quantum walk are not completely spoiled. Contrarily to expectations, the asymptotic behavior is non Markovian, and depends on the amount of decoherence. This feature can be clearly shown on the long time value of the Generalized Chiral Distribution (GCD).

    Pérez Cañellas, Armando Romanelli, A. 2013 Spatially Dependent Decoherence and Anomalous Diffussion of Quantum Walks Journal Of Computational And Theoretical Nanoscience 10 7- SI 1591 1595
http://dx.doi.org/10.1166/jctn.2013.3093
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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