Abstract
We report an important step forward for the goal of unambiguous observation of Bose–Einstein condensation of excitons in semiconductors. We have demonstrated a system in which excitons live for microseconds, much longer than their thermalization time, move over distances of hundreds of microns, and can be trapped in a harmonic potential exactly analogous to the traps for atomic condensates. We also report recent results of a new method for observing evidence of Bose–Einstein condensation, by angular resolution of the emitted luminescence.
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