摘要
Entanglement dynamics of a two-qutrit Heisenberg spin chain with the external magnetic fields and DM interaction under the intrinsic deeoherence is investigated. Depending on whether there is inhomogeneous magnetic field, the entanglement amplification, i.e. the phenomenon that the finally stable entanglement is bigger than that of the initial one, is found for one kind of initial states. The reasons for the controllable entanglement amplification are discussed.
基金
Supported by the National Natural Science Foundation of China under Grant Nos.11065005 and 10865004
the Governor’s Foundation for Science and Education Elites of Guizhou Province,the Natural Science and Technology Foundation of Guizhou Province under Grant No.[2009]2267
the Doctor fund of GNU
