Superballistic diffusion of entanglement in disordered spin chains

J. Fitzsimons*, J. Twamley

*Corresponding author for this work

Research output: Contribution to journalArticle

23 Citations (Scopus)
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Abstract

We study the dynamics of a single excitation in an infinite XXZ spin chain, which is launched from the origin. We study the time evolution of the spread of entanglement in the spin chain and obtain an expression for the second-order spatial moment of concurrence, about the origin, for both ordered and disordered chains. In this way, we show that a finite central disordered region can lead to sustained superballistic growth in the second-order spatial moment of entanglement within the chain.

Original languageEnglish
Article number050301
Pages (from-to)1-4
Number of pages4
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume72
Issue number5
DOIs
Publication statusPublished - Nov 2005

Bibliographical note

Fitzsimons J and Twamley J, Phys. Rev. A. 72(5), 050301, 2005. Copyright 2005 by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevA.72.050301.

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