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Entanglement localization by a single defect in a spin chain

Tony J. G. Apollaro·Francesco Plastina
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Abstract

We discuss the effect of a single diagonal defect on both the static and dynamical properties of entanglement in a spin chain. We show that entanglement localizes at the defect and discuss its localization length, arguing that this can be used as a mean to store entanglement. We also show that the impurity site can behave as an entanglement mirror and characterize the bouncing process in terms of reflection and transmission coefficients.

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Tony J. G. Apollaro, Francesco Plastina. 2006-10-09. Entanglement localization by a single defect in a spin chain. https://doi.org/10.1103/physreva.74.062316

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