dorsal/arxiv
View SchemaSeparability for lattice systems at high temperature
| Authors | H. Narnhofer |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0412152 |
| URL | https://arxiv.org/abs/quant-ph/0412152 |
| DOI | 10.1103/PhysRevA.71.052326 |
Abstract
Equilibrium states of infinite extended lattice systems at high temperature are studied with respect to their entanglement. Two notions of separability are offered. They coincide for finite systems but differ for infinitely extended ones. It is shown that for lattice systems with localized interaction for high enough temperature there exists no local entanglement. Even more quasifree states at high temperature are also not distillably entangled for all local regions of arbitrary size. For continuous systems entanglement survives for all temperatures. In mean field theories it is possible, that local regions are not entangled but the entanglement is hidden in the fluctuation algebra.
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"abstract": "Equilibrium states of infinite extended lattice systems at high temperature\nare studied with respect to their entanglement. Two notions of separability are\noffered. They coincide for finite systems but differ for infinitely extended\nones. It is shown that for lattice systems with localized interaction for high\nenough temperature there exists no local entanglement. Even more quasifree\nstates at high temperature are also not distillably entangled for all local\nregions of arbitrary size. For continuous systems entanglement survives for all\ntemperatures. In mean field theories it is possible, that local regions are not\nentangled but the entanglement is hidden in the fluctuation algebra.",
"arxiv_id": "quant-ph/0412152",
"authors": [
"H. Narnhofer"
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"quant-ph"
],
"doi": "10.1103/PhysRevA.71.052326",
"title": "Separability for lattice systems at high temperature",
"url": "https://arxiv.org/abs/quant-ph/0412152"
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