Journal
JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT
Volume -, Issue -, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1742-5468/2014/12/P12017
Keywords
conformal field theory (theory); entanglement in extended quantum systems (theory); quantum quenches
Categories
Funding
- ERC [279391 EDEQS]
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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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