Quasi-compactons and bistability in exciton-polariton condensates
arXiv:1212.1287 · doi:10.1103/PhysRevB.86.205313
Abstract
We address stationary patterns in exciton-polariton condensates supported by a narrow external pump beam, and we discover that even in the absence of trapping potentials, such condensates may support stable localized stationary dissipative solutions (quasi-compactons), whose field decays faster than exponentially or even vanishes everywhere outside the pump spot. More general conditions lead to dissipative solitons which may display bistability. The bistability in exciton-polariton condensates, which manifests itself in simultaneous existence of two stable and one unstable localized solitons with different amplitudes, widths, and exciton-photon fractions under the same physical conditions, strongly depends on the width of pump beam and is found to disappear for sufficiently narrow pump beams.
References in corpus (8)
- Observation of Superfluidity of Polaritons in Semiconductor Microcavities
- Quantum-fluid dynamics of microcavity polaritons
- Polariton Condensate Transistor Switch
- Spatial and spectral shape of inhomogeneous non-equilibrium exciton-polariton condensates
- Quantum Degenerate Exciton-Polaritons in Thermal Equilibrium
- Collective coherence in planar semiconductor microcavities
- Energy Relaxation in a 1-D Polariton Condensate
- Superflow of resonantly driven polaritons against a defect