Loop parametric scattering of cavity polaritons
arXiv:2101.00614 · doi:10.1103/PhysRevB.103.184304
Abstract
Within the framework of the mean-field approximation, a coherently excited two-dimensional system of weakly repulsive bosons is predicted to show a giant loop scattering when the rotational symmetry is reduced. The considered process combines (i) the parametric decay of the driven condensate into different k-states and (ii) their massive back scattering owing to spontaneous synchronization of several four-wave mixing channels. The hybridization of the direct and inverse scattering processes, which are different and thus do not balance each other, makes the condensate oscillate under constant one-mode excitation. In particular, the amplitude of a polariton condensate excited by a resonant electromagnetic wave in a uniform polygonal GaAs-based microcavity is expected to oscillate in the sub-THz frequency domain.
6 pages, 5 figures
References in corpus (5)
- Quantum fluids of light
- Quantum degeneracy of microcavity polaritons
- Kinetics of stimulated polariton scattering in planar microcavities: Evidence for a dynamically self-organized optical parametric oscillator
- Polariton chimeras: Bose-Einstein condensates with intrinsic chaoticity and spontaneous long-range ordering
- Blowup dynamics of coherently driven polariton condensates