Peculiarities of two-photon optical nutation of biexcitons in semiconductors taking into account elastic interparticle interactions

The peculiarities of two-photon nutation in a system of coherent biexcitons in CuCl semiconductors are considered taking into account the elastic biexciton — biexciton interaction. It is shown that depending on the system parameters, optical nutation represents a process of periodic transformation of photon pairs into biexcitons and vice versa. The possibility of exercising the phase control of the optical nutation process is predicted.