Spin-orbital effect on polariton state in traps
arXiv:2210.16700 · doi:10.1103/PhysRevB.106.235306
Abstract
I discuss similitude and differences of spin-orbital effects for electrons in quantum wells with the Rashba coupling and for polaritons in semiconductor microcavities with TE-TM splitting. Contrary to the case of electron, the ground state of polariton in the trap can be non-degenerate and can possess specific polarization structure. For the case of azimuthally symmetric trap and sufficiently strong spin-orbital coupling, the ground state is either radial or azimuthal vortex, depending on the sign of the coupling constant. The effect is strongly enhanced for polaritons trapped in a ring, where even weak TE-TM splitting results in formation of vorticity and definite polarization of the ground state. The Hamiltonian for quasi-1D motion of polaritons in the ring is derived and it is shown the the dispersion of polaritons depend qualitatively on the curvature of the ring.
arXiv comment8 pages, 3 figures. Paper submitted for the special issue of PRB in honor of E. I. Rashba
References in corpus (24)
- Spintronics: Fundamentals and applications
- Spin-orbit interactions of light
- New Perspectives for Rashba Spin-Orbit Coupling
- Bose-Einstein condensation of photons in an optical microcavity
- Observation of non-Hermitian degeneracies in a chaotic exciton-polariton billiard
- An Exact SU(2) Symmetry and Persistent Spin Helix in a Spin-Orbit Coupled System
- Orbital mechanisms of electron spin manipulation by an electric field
- Spontaneous Polarisation Build up in a Room Temperature Polariton Laser
- Polariton Condensation in an optically induced 2D potentia
- Rashba coupling in quantum dots: exact solution
- Spontaneous Pattern Formation in a Polariton Condensate
- Proposal for a Mesoscopic Optical Berry-Phase Interferometer
- Optical analogue of Dresselhaus spin-orbit interaction in photonic graphene
- Spin-Flipping Half Vortex in a Macroscopic Polariton Spinor Ring Condensate
- Optically trapped polariton condensates as semiclassical time crystals
- Persistent circular currents of exciton-polaritons in cylindrical pillar microcavities
- Zitterbewegung of exciton-polaritons
- Spontaneous polariton currents in periodic lateral chains
- Low-energy collective oscillations and Bogoliubov sound in an exciton-polariton condensate
- Observation of Non-equilibrium Motion and Equilibration in Polariton Rings
- Old experiments in new light: Young's double-slit and Stern-Gerlach experiments in liquid crystal microcavities
- Quantum nanostructures in strongly spin-orbit coupled two-dimensional systems
- Dynamics of spin polarization in tilted polariton rings
- Long Josephson junctions with exciton-polariton condensates