Electron-LO-phonon quantum kinetics in semiconductor quantum wells
Electron-LO-phonon quantum kinetics in semiconductor quantum wells
复制标题
半导体量子阱中的电子-LO-声子量子动力学
DOI：
10.1103/physrevb.58.3590
复制
发表时间：
1998
影响因子：
3.7
通讯作者：
M. Wegener
中科院分区：
文献类型：
--
作者：
M. Wehner;D. Chemla;M. Wegener
在二维半导体中证明了电子和声子之间的量子相关性。由此产生的声子振荡相对于三维母系统表现出特征差异。我们展示了如何将这些相关性与非平衡相干声子明确区分开来。此外，相干控制允许声子振荡从这里观察到的另一种振荡中分离出来，这是由于与不同量子阱子带相关的两个电子-电子散射通道的干涉，特定于二维系统。
Quantum correlations between electrons and phonons are demonstrated in two-dimensional semiconductors. The resulting phonon oscillation exhibits characteristic differences with respect to the three-dimensional parent system. We show how these correlations can unambiguously be distinguished from nonequilibrium coherent phonons. Furthermore, coherent control allows separation of the phonon oscillation from another oscillation observed here, specific to two-dimensional systems, which is due to the interference of two electron-electron scattering channels associated with different quantum-well subbands.