具有给定西洛子群正规化子性质的局部群系

本文研究了满足条件N^F?F的局部群系集合的代数性质,同时对于这类群类F,给出了极小非F-群的结构.     

具有给定西洛子群正规化子性质的局部联系

本文研究了满足条件Ｎ＾Ｆ包含于Ｆ的局部群系集合的代数性质,同时对于这类群类Ｆ,给出了极小非Ｆ－群的结构。     

Evolution of Bell-nonlocality of two cavity fields in the double Jaynes-Cummings model

The Bell-nonlocality of two initially entangled macroscopic fields in the double Jaynes-Cummings model is investigated. Moreover, the process by which detuning between the atomic transition frequency and the field frequency affects the evolution of the Bell-nonlocality of two macroscopic fields is studied. The effect of the disparity between the two coupling strengths is discussed.     

Sudden death of entanglement of two atoms interacting with thermal fields

We investigate the entanglement dynamics of two initially entangled atoms each interacting with a thermal field.We show that the two entangled atoms become completely disentangled in a finite time and that the lost information cannot return to the atomic system when the mean photon number of the thermal field exceeds a critical value (3.3584),even though the whole system is lossless.Then we study how the detuning between the atomic transition frequency and the field frequency and the disparity between two coupling rates would affect the evolution of the entanglement of the atomic system.