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      Condensation of semiconductor microcavity exciton polaritons.

      Science (New York, N.Y.)

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          Abstract

          A phase transition from a classical thermal mixed state to a quantum-mechanical pure state of exciton polaritons is observed in a GaAs multiple quantum-well microcavity from the decrease of the second-order coherence function. Supporting evidence is obtained from the observation of a nonlinear threshold behavior in the pump-intensity dependence of the emission, a polariton-like dispersion relation above threshold, and a decrease of the relaxation time into the lower polariton state. The condensation of microcavity exciton polaritons is confirmed.

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          Most cited references 25

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          Observation of the coupled exciton-photon mode splitting in a semiconductor quantum microcavity

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            Angle-Resonant Stimulated Polariton Amplifier

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              Quantum Noise

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                Author and article information

                Journal
                12364801
                10.1126/science.1074464

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