[en] In this paper the interaction between two two-level atoms with a single-mode quantized field is studied. To achieve exact information about the physical properties of the system, one should take into account various sources of dissipation such as photon leakage of cavity, spontaneous emission rate of atoms, internal thermal radiation of cavity and dipole–dipole interaction between the two atoms. In order to achieve the desired goals, the time evolution of the associated density operator has been obtained, by solving the time-dependent Lindblad equation corresponding to the system. Then, the temporal behavior of total population inversion and quantum entanglement between the evolved subsystems, has been evaluated numerically. It is clearly shown as to how the damping parameters affect on the dynamics of considered properties