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Quantum Degenerate Exciton-Polaritons in Thermal Equilibrium

TitleQuantum Degenerate Exciton-Polaritons in Thermal Equilibrium
Publication TypeJournal Article
Year of Publication2006
AuthorsH. Deng, D. Press, S. Götzinger, G. S. Solomon, R. Hey, K. Ploog, and Y. Yamamoto
JournalPhys. Rev. Lett.
Date Publishedoct
Keywords2006, Single Fellow

We study the momentum distribution and relaxation dynamics of semiconductor microcavity polaritons by angle-resolved and time-resolved spectroscopy. Above a critical pump level, the thermalization time of polaritons at positive detunings becomes shorter than their lifetime, and the polaritons form a quantum degenerate Bose-Einstein distribution in thermal equilibrium with the lattice.