Microcavity with saturable nonlinearity under simultaneous resonant and   nonresonant pumping: multistability, Hopf bifurcations and chaotic behaviour
  We studied optical response of microcavity non-equilibrium exciton-polariton Bose-Einstein condensate with saturable nonlinearity under simultaneous resonant and non-resonant pumping. We demonstrated the emergence of multistabile behavior due to the satutration of the excitonic absorbtion. Stable periodic Rabi- type oscillations of the excitonic and photonic condensate components in the regime of the stationary pump and their transition to the chaotic dynamics through the cascade of Hopf bifurcations by tuning of the electrical pump are revealed. 
Ivan Iorsh, Alexander Alodjants, Ivan Shelykh
physics.optics cond-mat.mes-hall