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arXiv · 1005.0364

Distance growth of quantum states due to initial system--environment correlations

J. Dajka·J. Luczka
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Abstract

Intriguing features of the distance between two arbitrary states of an open quantum system are identified that are induced by initial system-environment correlations. As an example, we analyze a qubit dephasingly coupled to a bosonic environment. Within tailored parameter regimes, initial correlations are shown to substantially increase a distance between two qubit states evolving to long-time limit states according to exact non-Markovian dynamics. It exemplifies the breakdown of the distance contractivity of the reduced dynamics.

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J. Dajka, J. Luczka. 2010-05-03. Distance growth of quantum states due to initial system--environment correlations. https://doi.org/10.1103/physreva.82.012341

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