Elementary excitations in spinor polariton- electron systems
arXiv:1103.0815 · doi:10.1103/PhysRevB.84.125313
Abstract
We consider effective interactions in a 2D hybrid polariton- electron system and calculate dispersion of elementary excitations accounting the spin degree of freedom of the particles. Due to the crucial role played by the exchange term in polariton- electron interactions the dispersions of this system become spin- dependent and show unusual behavior. The coupling of the excitations of the condensate with 2D plasmon can result in appearence of roton minimum in the dispersion and destruction of the condensate for close enough situated quantum wells with electrons and excitons.
8 pages, submitted to Phys. rev. B
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Cited by in corpus (6)
- Superradiant terahertz emission by dipolaritons
- Spin-orbit coupled cold exciton condensates
- Coupled system of electrons and exciton-polaritons: Screening, dynamical effects, and superconductivity
- Nonequilibrium Landau-Zener Tunneling in Exciton-Polariton Condensates
- Striped excitonic (super)solid in anisotropic semiconductors with screened exciton interactions
- BCS pairing in fully repulsive fermion mixtures