dorsal/arxiv
View SchemaSuperballistic Diffusion of Entanglement in Disordered Spin Chains
| Authors | J. Fitzsimons, J. Twamley |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0506053 |
| URL | https://arxiv.org/abs/quant-ph/0506053 |
| DOI | 10.1103/PhysRevA.72.050301 |
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.
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"abstract": "We study the dynamics of a single excitation in an infinite XXZ spin chain,\nwhich is launched from the origin. We study the time evolution of the spread of\nentanglement in the spin chain and obtain an expression for the second order\nspatial moment of concurrence, about the origin, for both ordered and\ndisordered chains. In this way, we show that a finite central disordered region\ncan lead to sustained superballistic growth in the second order spatial moment\nof entanglement within the chain.",
"arxiv_id": "quant-ph/0506053",
"authors": [
"J. Fitzsimons",
"J. Twamley"
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"quant-ph"
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"doi": "10.1103/PhysRevA.72.050301",
"title": "Superballistic Diffusion of Entanglement in Disordered Spin Chains",
"url": "https://arxiv.org/abs/quant-ph/0506053"
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