Vörös Z, Snoke D W, Pfeiffer L, West K
Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA.
Phys Rev Lett. 2006 Jul 7;97(1):016803. doi: 10.1103/PhysRevLett.97.016803.
We have trapped a gas of long-lifetime, high-mobility excitons in an in-plane harmonic potential. Trapping is an important step toward the goal of a controlled Bose-Einstein condensate of excitons. We show that the repulsive interaction between the excitons plays a dominant role in the behavior of the excitons, in contrast with the weak interactions in atomic gases. We show that under proper conditions the excitons thermalize in the trap to a well-defined equilibrium spatial distribution.
我们已将具有长寿命、高迁移率的激子气体捕获在平面内的简谐势阱中。捕获是朝着实现激子的可控玻色 - 爱因斯坦凝聚这一目标迈出的重要一步。我们表明，与原子气体中的弱相互作用形成对比的是，激子之间的排斥相互作用在激子的行为中起主导作用。我们还表明，在适当条件下，激子在势阱中热化至明确的平衡空间分布。
