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Trapping long-lifetime excitons in a two-dimensional harmonic potential

机译:在二维谐波势中捕获长寿命激子

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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. (c) 2004 Elsevier Ltd. All rights reserved.
机译:我们报告了朝着明确观察到半导体中激子的玻色-爱因斯坦凝聚的目标迈出的重要一步。我们已经证明了这样一个系统,其中激子的寿命比其热化时间长几微秒,在数百微米的距离内移动,并且可以被捕获在一个与原子冷凝物陷阱完全相似的谐波电位中。我们还报告了一种新方法的最新结果,该方法通过发射发光的角度分辨率观察Bose-Einstein凝聚的证据。 (c)2004 Elsevier Ltd.保留所有权利。

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