2012/11/03 by Tim Byrnes, Y. Yamamoto, Yoshihisa Yamamoto +1
Computer Science · Physics and Astronomy · #Coherence (philosophical gambling strategy) #Coherent states #Component (thermodynamics) #Exciton #Gaussian #Optics #Photon #Physics #Polariton #Quantum #Quantum Information and Cryptography #Quantum mechanics #Quantum optics #Semiconductor Quantum Structures and Devices #Strong Light-Matter Interactions #cond-mat.quant-gas #quant-ph
paper · pdf · doi:10.1103/physrevb.87.201301
published as Phys. Rev. B 87, 201301(R) (2013) · 3 figures
arxiv created 2012/11/03 · openalex publication_date 2013/05/13 · arxiv updated 2015/06/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Exciton-polariton condensates are considered as a deterministic source of bright, coherent non-Gaussian light. Exciton-polariton condensates emit coherent light via 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.