Rapaport Ronen, Chen Gang
Bell Laboratories, Alcatel-Lucent, 600 Mountain Avenue, Murray Hill, NJ 07974, USA.
J Phys Condens Matter. 2007 Jul 25;19(29):295207. doi: 10.1088/0953-8984/19/29/295207. Epub 2007 Jun 11.
We review various aspects of our recent work on dipolar excitons in double quantum well systems. We describe and analyse different possible avenues for obtaining high density and cold dipolar exciton fluids that may enable an observation of quantum phase transitions in excitonic systems. These avenues include free dipolar exciton fluids, dipolar exciton fluids in electrostatic traps and in excitonic rings. We present our experimental and modelling work on the exciton dynamics in such systems, and discuss our current view of the advances made and the challenges that remain in this fast evolving and promising field of research.
我们回顾了近期在双量子阱系统中关于偶极激子的各项工作。我们描述并分析了获得高密度且低温偶极激子流体的不同可能途径，这些途径可能使我们能够观测到激子系统中的量子相变。这些途径包括自由偶极激子流体、静电阱中的偶极激子流体以及激子环中的偶极激子流体。我们展示了在此类系统中激子动力学的实验和建模工作，并讨论了我们目前对于在这个快速发展且前景广阔的研究领域中所取得的进展以及仍然存在的挑战的看法。
