頁籤選單縮合
| 題 名 | Thermal Entanglement of a Two-Qubit Heisenberg XYZ Model with an In-Plane Magnetic Field |
|---|---|
| 作 者 | Liu, Jin-ming; Yu, Peng-fei; Cai, Ji-guang; Shen, Guo-tu; | 書刊名 | Chinese Journal of Physics |
| 卷 期 | 47:4 2009.08[民98.08] |
| 頁 次 | 頁574-585 |
| 分類號 | 330 |
| 關鍵詞 | |
| 語 文 | 英文(English) |
| 英文摘要 | We investigate the thermal entanglement of a two-qubit anisotropic Heisenberg XYZ model with both uniform and nonuniform magnetic fields in the x-z plane at thermal equilibrium. For the uniform magnetic field case, it is shown that the value of the critical magnetic field Bc may be broadened by changing the direction of the magnetic field and that the revival of entanglement is due to the combined influence of the magnetic field and the Heisenberg model’s partial anisotropy in the plane which is perpendicular to the magnetic field. Moreover, the direction of the magnetic field will have an effect on the critical temperature Tc only when the field strength is large enough. For the nonuniform magnetic field case it is found that, for any direction of the magnetic field, the introduction of inhomogeneity in the magnetic field always broadens the critical magnetic field Bc, but diminishes the maximum entanglement. |
本系統中英文摘要資訊取自各篇刊載內容。