Trapping excitons in a two-dimensional in-plane harmonic potential: experimental evidence for equilibration of indirect excitons |
| |
Authors: | Vörös Z Snoke D W Pfeiffer L West K |
| |
Institution: | Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA. |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 PubMed 等数据库收录! |
|