Physics – Quantum Physics
Scientific paper
2006-02-04
Physics
Quantum Physics
Scientific paper
The thermal entanglement of a two-qubit anisotropic Heisenberg $XYZ$ chain under an inhomogeneous magnetic field b is studied. It is shown that when inhomogeneity is increased to certain value, the entanglement can exhibit a larger revival than that of less values of b. The property is both true for zero temperature and a finite temperature. The results also show that the entanglement and critical temperature can be increased by increasing inhomogeneous exteral magnetic field.
Gao Wei-Bo
Song Hee Sung
Yang Guo-Hong
Zhou Lan
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