dorsal/arxiv
View SchemaEntanglement versus energy in quantum spin models
| Authors | XiaoGuang Wang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0406182 |
| URL | https://arxiv.org/abs/quant-ph/0406182 |
| DOI | 10.1016/j.physleta.2004.11.040 |
Abstract
We study entanglement properties of all eigenstates of the Heisenberg XXX model, and find that the entanglement and mixedness for a pair of nearest-neighbor qubits are completely determined by the corresponding eigenenergies. Specifically, the negativity of the eigenenergy implies pairwise entanglement. From the relation between entanglement and eigenenergy, we obtain finite-size behaviors of the entanglement. We also study entanglement and mixedness versus energy in the quantum Heisenberg XY model.
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"abstract": "We study entanglement properties of all eigenstates of the Heisenberg XXX\nmodel, and find that the entanglement and mixedness for a pair of\nnearest-neighbor qubits are completely determined by the corresponding\neigenenergies. Specifically, the negativity of the eigenenergy implies pairwise\nentanglement. From the relation between entanglement and eigenenergy, we obtain\nfinite-size behaviors of the entanglement. We also study entanglement and\nmixedness versus energy in the quantum Heisenberg XY model.",
"arxiv_id": "quant-ph/0406182",
"authors": [
"XiaoGuang Wang"
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"quant-ph"
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"doi": "10.1016/j.physleta.2004.11.040",
"title": "Entanglement versus energy in quantum spin models",
"url": "https://arxiv.org/abs/quant-ph/0406182"
},
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