dorsal/arxiv
View SchemaEntanglement properties in (1/2,1) mixed-spin Heisenberg systems
| Authors | Zhe Sun, XiaoGuang Wang, AnZi Hu, You-Quan Li |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0508208 |
| URL | https://arxiv.org/abs/quant-ph/0508208 |
| DOI | 10.1016/j.physa.2006.03.020 |
| Journal | Physica A: Statistical and Theoretical Physics, Volume 370, Issue 2, Pages 483-500 (2005) |
Abstract
By using the concept of negativity, we investigate entanglement in (1/2,1) mixed-spin Heisenberg systems. We obtain the analytical results of entanglement in small isotropic Heisenberg clusters with only nearest-neighbor (NN) interactions up to four spins and in the four-spin Heisenberg model with both NN and next-nearest-neighbor (NNN) interactions. For more spins, we numerically study effects of temperature, magnetic fields, and NNN interactions on entanglement. We study in detail the threshold value of the temperature, after which the negativity vanishes.
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"abstract": "By using the concept of negativity, we investigate entanglement in (1/2,1)\nmixed-spin Heisenberg systems. We obtain the analytical results of entanglement\nin small isotropic Heisenberg clusters with only nearest-neighbor (NN)\ninteractions up to four spins and in the four-spin Heisenberg model with both\nNN and next-nearest-neighbor (NNN) interactions. For more spins, we numerically\nstudy effects of temperature, magnetic fields, and NNN interactions on\nentanglement. We study in detail the threshold value of the temperature, after\nwhich the negativity vanishes.",
"arxiv_id": "quant-ph/0508208",
"authors": [
"Zhe Sun",
"XiaoGuang Wang",
"AnZi Hu",
"You-Quan Li"
],
"categories": [
"quant-ph"
],
"doi": "10.1016/j.physa.2006.03.020",
"journal_ref": "Physica A: Statistical and Theoretical Physics, Volume 370, Issue\n 2, Pages 483-500 (2005)",
"title": "Entanglement properties in (1/2,1) mixed-spin Heisenberg systems",
"url": "https://arxiv.org/abs/quant-ph/0508208"
},
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