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Entanglement negativity after a global quantum quench

arXiv
Authors: Andrea Coser, Erik Tonni, Pasquale Calabrese

Year

2014

Paper ID

47173

Status

Preprint

Abstract Read

~2 min

Abstract Words

84

Citations

N/A

Abstract

We study the time evolution of the logarithmic negativity after a global quantum quench. In a 1+1 dimensional conformal invariant field theory, we consider the negativity between two intervals which can be either adjacent or disjoint. We show that the negativity follows the quasi-particle interpretation for the spreading of entanglement. We check and generalise our findings with a systematic analysis of the negativity after a quantum quench in the harmonic chain, highlighting two peculiar lattice effects: the late birth and the sudden death of entanglement.

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  • This paper contributes to the Entanglement Theory & Quantum Correlations research area in the Quantum Articles archive.
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  • We study the time evolution of the logarithmic negativity after a global quantum quench.

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