Vortices in spinor cold exciton condensates with spin-orbit interaction
arXiv:1310.0877 · doi:10.1103/PhysRevB.89.035302
Abstract
We study theoretically the ground states of topological defects in a spinor four-component condensate of cold indirect excitons. We analyze possible ground state solutions for different configurations of vortices and half-vortices. We show that if only Rashba or Dreselhaus spin-orbit interaction (SOI) for electrons is present the stable states of topological defects can represent a cylindrically symmetric half-vortex or half vortex-antivortex pairs, or a non-trivial pattern with warped vortices. In the presence of both of Rashba and Dresselhaus SOI the ground state of a condensate represents a stripe phase and vortex type solutions become unstable.
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Cited by in corpus (5)
- Interference dislocations in condensate of indirect excitons
- Pancharatnam-Berry phase in condensate of indirect excitons
- Roton-maxon spectrum and instability for weakly interacting dipolar excitons in a semiconductor layer
- Effect of uniaxial stress on the interference of polaritonic waves in wide quantum wells
- Bose condensation of direct excitons in an off-resonant cavity at elevated temperatures