Qin, M (reprint author), Nanjing Univ, Dept Phys, Hankou Rd 22, Nanjing 210093, Jiangsu, Peoples R China.
We investigate the characteristics of entanglement teleportation of a two-qubit and three-qubit Heisenberg XYZ model under different Dzyaloshinskii-Moriya (DM) interactions with intrinsic decoherence taken into account. The two-qubit results reveal that the dynamics of entanglement is a symmetric function about the coupling coefficient for the -component DM system, whereas it is not for the -component DM system. The ferromagnetic case is superior to the antiferromagnetic case to restrain decoherence when using the -component DM system. The dependencies of entanglement, the output entanglement, and the average fidelity on initial state angle all demonstrate periodicity. Moreover, the -component DM system can get a high fidelity both in two-qubit and in three-qubit teleportation protocol.
National Natural Science Foundation of China [11035001, 11375086, 11105079, 10975072]
; National Major State Basic Research and Development of China [2013CB834400, 2010CB327803]
; Chinese Academy of Sciences Knowledge Innovation Project [KJCX2-SW-N02]
; Research Fund of Doctoral Point (RFDP) 
; Science and Technology Development Fund of Macau [068/2011/A]
Qin, M,Ren, ZZ. Influence of intrinsic decoherence on entanglement teleportation via a Heisenberg XYZ model with different Dzyaloshinskii-Moriya interactions[J]. QUANTUM INFORMATION PROCESSING,2015,14(6):2055-2066.