The effects of the initial field state and thermal environment on quantum nonlocality and linear entropy in atom-field coupling system are investigated.We found that if the cavity dissipation is very weak and the average photon number of the reservoir is very small,the atom-field coupling state can exhibit quantum nonlocality periodically,and the linear entropies of the atom and the field oscillate with the same period.The rapidity of the loss of the quantum nonlocality depends on the amplitude of the initial squeezed coherent state the cavity ...
