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arXiv · 0709.3279

Asymptotic entanglement in the discrete-time quantum walk

G. Abal·R. Donangelo·H. Fort
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Abstract

The coin-position entanglement generated by the evolution operator of a discrete--time quantum walk converges, in the long time limit, to a well defined value which depends on the initial state. We also discuss the asymptotic bi-partite entanglement generated by several non-separable coin operations for two coherent quantum walkers, for which the entropy of entanglement increases logarithmically.

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G. Abal, R. Donangelo, H. Fort. 2007-09-20. Asymptotic entanglement in the discrete-time quantum walk. https://arxiv.org/abs/0709.3279

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