Bound states in birefringent crystals doped with two-level atoms

The dynamics of the interaction of electromagnetic pulses in a medium with impurity twolevel atoms. Using the kinetic equation for the mean values of pseudospin operators, and decay in the random phase approximation. A numerical study of the conditions of formation of bound states of optical pulses and shows the evolution of the system for different parameters of the problem. The analogy between the results obtained and the well-known soliton modes.