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Entanglement and interaction in a topological quantum walk

Alberto D. Verga, Ricardo Gabriel Elias

SciPost Phys. 5, 019 (2018) · published 31 August 2018


We study the quantum walk of two interacting particles on a line with an interface separating two topologically distinct regions. The interaction induces a localization-delocalization transition of the edge state at the interface. We characterize the transition through the entanglement between the two particles.

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Entanglement Topological insulators

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