Nonlinear Dynamics of Parametric Oscillations of Polaritons in a Microcavity

Optics and Spectroscopy - The dynamics of polaritons in a microcavity in the parametric oscillator mode, when two pump polaritons turn into the signal and idler polaritons and vice versa, has been...     

Nonlinear Dynamics of Parametric Oscillations of Exciton–Polaritons in a Semiconductor Microcavity

Journal of Experimental and Theoretical Physics - The polariton dynamics in a microcavity in the parametric oscillator mode is studied when two pump polaritons turn into polaritons of signal and...     

Features of stimulated atomic-molecular conversion with the formation of heteronuclear molecules in Bose-Einstein condensates

The dynamics of optically stimulated atomic-molecular conversion in a Bose-Einstein condensate has been investigated, i.e., the periodic association of two unlike Bose atoms into a heteronuclear molecule followed by dissociation of the molecule into two atoms. It has been shown that the period and amplitude of the molecular density oscillations depend substantially on the initial particle densities and phase difference.     

Dynamic features of stimulated raman atomic-molecular conversion in a mixture of two bose gases with the formation of bose condensates of heteronuclear molecules

Based on the mean-field approximation, a system of nonlinear differential equations is obtained which describes the dynamics of atomic-molecular conversion induced by two resonance Raman laser pulses. The obtained integrals of motion allow one to reduce the problem to one evolution equation for the density of molecules. The solutions of this equation show that different time evolution regimes of the system are possible, depending on the initial conditions: the periodic and aperiodic regimes and the rest. The dependences of the period and amplitude on the initial density of particles and the initial phase difference are studied in detail. The possibility of the phase control of the system dynamics is proved.     

Atom-molecule conversion in the self-trapping regime

The dynamics of atom-molecule conversion in the Bose-Einstein condensate state, with the formation of a homonuclear molecule in the self-trapping mode, has been studied. The conditions and bifurcation values at which self-trapping occurs in this system are found.     

Dynamics of Bose-Condensed Ultracold Atoms and Trimer Molecules with the Formation of Atomic–Molecular Pairs

Journal of Experimental and Theoretical Physics - The results of investigation of the photodissociation dynamics of triatomic Bose-condensed ultracold molecules (trimers) with the formation of...     

Nonlinear Dynamics of a Dipolariton Optical Parametric Oscillator

JETP Letters - The dynamics of dipolariton states in a planar microcavity under pumping into the middle dipolariton branch by two laser pulses with close frequencies is investigated. It is shown...     

Nonlinear Dynamics of Parametric Oscillations of Exciton–Polaritons in a Semiconductor Microcavity with Allowance for Decay

Optics and Spectroscopy - We have studied the dynamics of polaritons in a microcavity in the parametric oscillator regime, when the pump is carried out by two laser pulses with close frequencies....     

Theory of atomic–molecular conversion under the conditions of Bose–Einstein condensation

A set of nonlinear differential equations that describe the dynamics of atomic–molecular conversion under the action of two arbitrarily shaped Raman pulses of resonance laser radiation has been derived in the mean-field approximation. The dynamics of the system subjected to Gaussian pulses has been studied in detail. It has been shown that the time evolution of the system depends on the initial conditions.