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Polariton squeezing in microcavities
Author(s) -
Quattropani Antonio,
Schwendimann Paolo
Publication year - 2005
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200560963
Subject(s) - polariton , physics , excitation , exciton polaritons , condensed matter physics , exciton , scattering , phonon , semiconductor , quantum mechanics
Abstract Squeezed states may be found in solids when considering solid state excitations like polaritons, which are mixed states of radiation and excitons or phonons. Squeezing may be observed through the polariton radiation field component, whose statistics reproduces the statistics of the polaritons. The squeezing of polaritons in different semiconductor systems and excitations regimes is discussed. For a sufficiently low density of excitation, an intrinsic but very small squeezing is found for bulk as well as for quantum well and microcavity polaritons. When the density of excitation becomes larger, a large amount of squeezing of microcavity polaritons induced by polariton–polariton scattering is demonstrated both in theory and in experiment. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)