1202.0682 (R. A. Vlasov et al.)

On dynamical instabilities of spectroscopic transitions in dense
resonant media    [PDF]

R. A. Vlasov, A. M. Lemeza, M. G. Gladush

We consider the influence of the near dipole-dipole interaction, underlying
the local field, on the dynamics of two-level and V-type three-level atoms
exposed to cw-laser radiation. The dipole-dipole interaction between the V-type
three-level atoms is shown to give rise to the Poincar\'e-Andronov-Hopf
bifurcation in steady-state solutions of the equation of motion. As a result,
the populations of the energy levels periodically vary in time. In the
framework of the two-level model, dynamical instabilities are proved to be
impossible.

View original: http://arxiv.org/abs/1202.0682