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Keyword: entanglement dynamics ×Clear all

2 claims from 1 paper

1. Physics and Astronomy › Quantum many-body systems

   Entanglement and thermodynamics after a quantum quench in integrable systems

   Alba and Calabrese · Proceedings of the National Academy of Sciences · 2017

   The authors show that a quasiparticle picture of entanglement, combined with the known steady state of integrable models, describes entanglement after a quantum quench in interacting systems, tested on the XXZ chain.

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   1. UncheckedThe quasiparticle picture plus knowledge of the steady state gives a full analytical account of entanglement growth after a quench in interacting integrable systems.“Conversely, here we show that the standard quasiparticle picture of the entanglement evolution, complemented with integrability-based knowledge of the asymptotic state, leads to a complete analytical understanding of the entanglement dynamics in the space-time scaling limit.”
   2. UncheckedThe authors' analytical predictions for entanglement growth after a quench match numerical simulations (tDMRG and iTEBD) in every case they tested.“We compare our results with numerical simulations using both tDMRG and iTEBD, finding always perfect agreement.”