Coherent manipulation of complex spin ensembles in semiconductor nanostructures (A01)

研究的目标将是由脉冲激光周期性驱动的量子点或量子阱中的局域自旋集合。在点中，我们将通过研究具有较不复杂的核自旋系统的结构，如GaAs/AlGaAs点结构或ZnSe中的氟给体束缚电子自旋，来推进通过核诱导频率聚焦促进自旋模式锁定的实验和理论研究。此外，我们将澄清和控制量子点之间的自旋-自旋相互作用，使用没有润湿层的结构。在掺杂量子阱中，我们将继续研究自旋动力学中的弱局域化现象。

Target of the studies will be ensembles of localized spins in quantum dots or wells that are driven periodically by pulsed lasers. In dots we will advance the experimental and theoretical studies of spin mode-locking facilitated through nuclear-induced frequency focusing by addressing structures with less complex nuclear spin system such as GaAs/AlGaAs dot structures or fluorine donor-bound electron spins in ZnSe. Further, we will clarify and control spin-spin interactions between QDs, using also structures without wetting layer. In doped quantum wells, we will continue our investigations of weak localization phenomena in the spin dynamics.