The project supported by National Natural Science Foundation of China under Grant Nos. 10574001 and 10674001, the Program of the Education Department of Anhui Province under Grant No. 2004kj029, and t
<正> Quantum statistical properties of the binomial field interacting with the two entangled atoms are investi-gated for the different initial conditions.It is
<正>We show that there is a quantum Sl_q(2) group symmetry in Hofstadter problem on square lattice.The cyclic representation of the quantum group is discussed a