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arXiv · 1603.00408

Collision model for non-Markovian quantum dynamics

Silvan Kretschmer·Kimmo Luoma·Walter T. Strunz
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Abstract

We study the applicability of collisional models for non-Markovian dynamics of open quantum systems. By allowing interactions between the separate environmental degrees of freedom in between collisions we are able to construct a collision model that allows to study quantum memory effects in open system dynamics. We also discuss the possibility to embed non-Markovian collision model dynamics into Markovian collision model dynamics in an extended state space. As a concrete example we show how using the proposed class of collision models we can discretely model non- Markovian amplitude damping of a qubit. In the time-continuous limit, we obtain the well-known results for spontaneous decay of a two level system in to a structured zero-temperature reservoir

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Silvan Kretschmer, Kimmo Luoma, Walter T. Strunz. 2016-03-01. Collision model for non-Markovian quantum dynamics. https://doi.org/10.1103/physreva.94.012106

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