An exact solution of the evolution problem for a boson packet in a " model " ideal infinitely extended crystal constructed of identical twolevel centers is obtained and studied: dissipative and temperature effects are ignored. A technique is proposed for the microscopic desrcription of the dynamics of the propagation of both long - wave as well as short - wave emission packets, as a result of which qualitative features of processes in the case of different ratios of the scale of microscopic inhomogeneities to the emission wavelength are identified.
Faculty of Physics, Moscow State University, Leninskie Gory, Moscow, 119992, Russia
Science News of the Faculty of Physics, Lomonosov Moscow State University
This new information publication, which is intended to convey to the staff, students and graduate students, faculty colleagues and partners of the main achievements of scientists and scientific information on the events in the life of university physicists.