Unconditional generation of bright coherent non-Gaussian light from exciton-polariton condensates

Abstract

Exciton-polariton condensates are considered as a deterministic source of bright, coherent non-Gaussian light. Exciton-polariton condensates emit coherent light via the photoluminescence through the microcavity mirrors due to the spontaneous formation of coherence. Unlike conventional lasers which emit coherent Gaussian light, polaritons possess a natural nonlinearity due to the interaction of the excitonic component. This produces light with a negative component to the Wigner function at steady-state operation when the phase is stabilized via a suitable method such as injection locking. In contrast to many other proposals for sources of non-Gaussian light, in our case, the light typically has an average photon number exceeding one and emerges as a continuous wave. Such a source may have uses in continuous-variable quantum information and communication.

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References in corpus (8)

• Entanglement in continuous variable systems: Recent advances and current perspectives
• Generation of a superposition of odd photon number states for quantum information networks
• Quantum-fluid dynamics of microcavity polaritons
• Positive Wigner functions render classical simulation of quantum computation efficient
• Engineering the spatial confinement of exciton-polaritons in semiconductors
• Efficient simulation scheme for a class of quantum optics experiments with non-negative Wigner representation
• Statistics of the polariton condensate
• Statistics of microcavity polaritons under non-resonant excitation

Cited by in corpus (6)

• Exciton-polariton condensates
• Effective interaction and condensation of dipolaritons in coupled quantum wells
• Sagnac interferometry with coherent vortex superposition states in exciton-polariton condensates
• Excitation of exciton-polariton vortices in pillar microcavities by a Gaussian beam
• Steady-state generation of negative-Wigner-function light using feedback
• Finite-size effects in two-photon correlations of exciton Bose-Einstein condensates