The project supported by National Natural Science Foundation of China under Grant No. 00125521 and the 973 State Key Basic Research and Development Program under Grant No. G2000077400
<正> By using the random phase approximation (RPA) in many-body perturbation theory,we calculate thepolarization function of the electron gas in graphene at fin
<正> The QCD deconfinement phase transition in pure SU(3)gauge theory is studied on an anisotropic lattice.The critical temperature is determined to be T_c≈285