Quantum Statistics and Kinetics of Excitons

时间分辨荧光实验证明了半导体铜(I)氧化物中光产生激子的简并量子统计。他们发现，在强烈的激光激发下，激子气体沿着玻色-爱因斯坦凝聚的相边界随时间演化。他们提出了许多实验来描述这种量子饱和气体的特征，并试图产生冷凝物。他们将研究简并统计如何改变激子的动能松弛。空间分辨发光实验将检验一个无法解释的简并气体的快速膨胀。他们提出开发的高分辨率技术将允许更广泛地理解铜(I)氧化物和其他半导体中的激子-激子和激子-声子过程。

Time-resolved lunimescence experiments have demonstrated degenerate quantum statistics of photo-produced excitons in the semiconductor Copper (I) Oxide. They have found that during intense laser excitation, the excitonic gas evolves in time along the phase boundary for Bose-Einstein condensation. They propose a number of experiments to characterize this quantum-saturated gas and attempt to produce the condensate. They will study how the degenerate statistics modify the kinetic energy relaxation of the excitons. Spatially resolved luminescence experiments will examine an unexplained rapid expansion of the degenerate gas. The high-resolution techniques they propose to develop will allow a broader understanding of exciton-exciton and exciton-phonon processes in Copper (I) Oxide and other semiconductors.