Quantum discord in three-spin XXZ chain with three-spin interaction
Quantum discord, as a kind of measurement of quantum correlation, has received much attention since it was introduced. This paper focuses on studying quantum discord in three-spin XXZ chain with three-spin interaction. The effects of all kinds of pa- rameters on quantum discord in the ferromagnetic...
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| Veröffentlicht in: | Science China. Physics, mechanics & astronomy mechanics & astronomy, 2012-09, Vol.55 (9), p.1641-1645 |
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| container_title | Science China. Physics, mechanics & astronomy |
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| creator | Yue, HaiDi Zhang, Yong Gong, Jian |
| description | Quantum discord, as a kind of measurement of quantum correlation, has received much attention since it was introduced. This paper focuses on studying quantum discord in three-spin XXZ chain with three-spin interaction. The effects of all kinds of pa- rameters on quantum discord in the ferromagnetic region J=-I are studied. The three-spin interaction may increase the value of quantum discord between two spins, while the anisotropy may decrease the value. In addition, the regrowth of quantum discord with temperature is found in the model. For zero temperature, quantum phase transition is existent. |
| doi_str_mv | 10.1007/s11433-012-4800-z |
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| subjects | Anisotropy Astronomy Classical and Continuum Physics Ferromagnetism Observations and Techniques Phase transitions Physics Physics and Astronomy Regrowth 各向异性 和谐 增加值 温度 自旋相互作用 量子关联 铁磁 链 |
| title | Quantum discord in three-spin XXZ chain with three-spin interaction |
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