dorsal/arxiv
View SchemaThermal entanglement and teleportation in a two-qubit Heisenberg chain with Dzyaloshinski-Moriya anisotropic antisymmetric interaction
| Authors | Guo-Feng Zhang |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703019 |
| URL | https://arxiv.org/abs/quant-ph/0703019 |
| DOI | 10.1103/PhysRevA.75.034302 |
| Journal | Physical Review A 75, 034304 (2007) |
Abstract
Thermal entanglement of a two-qubit Heisenberg chain in presence of the Dzyaloshinski-Moriya (DM) anisotropic antisymmetric interaction and entanglement teleportation when using two independent Heisenberg chains as quantum channel are investigated. It is found that the DM interaction can excite the entanglement and teleportation fidelity. The output entanglement increases linearly with increasing value of input one, its dependences on the temperature, DM interaction and spin coupling constant are given in detail. Entanglement teleportation will be better realized via antiferromagnetic spin chain when the DM interaction is turned off and the temperature is low. However, the introduction of DM interaction can cause the ferromagnetic spin chain to be a better quantum channel for teleportation. A minimal entanglement of the thermal state in the model is needed to realize the entanglement teleportation regardless of antiferromagnetic or ferromagnetic spin chains.
{
"annotation_id": "dce525e1-2f86-4a92-bc9f-32c3f58501a5",
"date_created": "2026-03-02T18:02:34.319000Z",
"date_modified": "2026-03-02T18:02:34.319000Z",
"file_hash": "cf7e8eb354efe9892b5941b92bef28280e735203159fb3db03d0758338f4949f",
"private": false,
"record": {
"abstract": "Thermal entanglement of a two-qubit Heisenberg chain in presence of the\nDzyaloshinski-Moriya (DM) anisotropic antisymmetric interaction and\nentanglement teleportation when using two independent Heisenberg chains as\nquantum channel are investigated. It is found that the DM interaction can\nexcite the entanglement and teleportation fidelity. The output entanglement\nincreases linearly with increasing value of input one, its dependences on the\ntemperature, DM interaction and spin coupling constant are given in detail.\nEntanglement teleportation will be better realized via antiferromagnetic spin\nchain when the DM interaction is turned off and the temperature is low.\nHowever, the introduction of DM interaction can cause the ferromagnetic spin\nchain to be a better quantum channel for teleportation. A minimal entanglement\nof the thermal state in the model is needed to realize the entanglement\nteleportation regardless of antiferromagnetic or ferromagnetic spin chains.",
"arxiv_id": "quant-ph/0703019",
"authors": [
"Guo-Feng Zhang"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevA.75.034302",
"journal_ref": "Physical Review A 75, 034304 (2007)",
"title": "Thermal entanglement and teleportation in a two-qubit Heisenberg chain with Dzyaloshinski-Moriya anisotropic antisymmetric interaction",
"url": "https://arxiv.org/abs/quant-ph/0703019"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "8597b3ba-0774-4ba6-b08e-43204ef2985b",
"id": "arXiv Dataset IDs",
"type": "Model",
"variant": "snapshot-2026-03-01",
"version": "0.1.0"
},
"user_id": 1000002
}