Trapping Long-Lifetime Excitons in a Two-Dimensional Harmonic Potential
Strongly Correlated Electrons
2009-11-10 v1
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 analous 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.
Cite
@article{arxiv.cond-mat/0410298,
title = {Trapping Long-Lifetime Excitons in a Two-Dimensional Harmonic Potential},
author = {D. W. Snoke and Y. Liu and Z. Voros and L. Pfeiffer and K. West},
journal= {arXiv preprint arXiv:cond-mat/0410298},
year = {2009}
}
Comments
Invited paper for International Conference on Spontaneous Coherence in Excitonic Systems, Seven Springs, PA, May 2004. To appear in Solid State Communications