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Updated: Jul 21, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Condensation of semiconductor microcavity exciton polaritons
Hui Deng1, Gregor Weihs, Charles Santori
1Quantum Entanglement Project, ICORP, JST, Edward L. Ginzton Laboratory, Stanford University, Stanford, CA 94305, USA. dhui@stanford.edu
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.

