Effects of phase decoherence on the entanglement of a two-qubit anisotropic Heisenberg XYZ chain with an in-plane magnetic fieldP. F. Yu, J. G. Cai, J. M. Liu and G. T. ShenEur. Phys. J. D, 44 1 (2007) 151-158DOI: https://doi.org/10.1140/epjd/e2007-00140-7