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 language | English |
|---|---|
| Article number | 050301 |
| Pages (from-to) | 1-4 |
| Number of pages | 4 |
| Journal | Physical Review A - Atomic, Molecular, and Optical Physics |
| Volume | 72 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 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.Fingerprint
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