论文标题
在圆形极化的光脉冲下的旋转动力学理论
Floquet theory of spin dynamics under circularly polarized light pulses
论文作者
论文摘要
在定期驱动的量子系统的Floquet理论中，分析了圆形极化电磁场脉冲下的非线性单旋转动力学。证明该场首先提高自旋变性，其次，场诱导的自旋分裂伴随着在吐痰频率下的光子发射。这个两阶段的过程尤其是导致沿圆形极化场的角动量旋转极化。结果，出现了脉冲诱导的磁化，可以在最新的测量中观察到的内容。
Within the Floquet theory of periodically driven quantum systems, the nonlinear single-spin dynamics under pulse of a circularly polarized electromagnetic field is analyzed. It is demonstrated that the field, first, lifts the spin degeneracy and, second, the field-induced spin splitting is accompanied by the photon emission at the spitting frequency. This two-stage process leads, particularly, to the polarization of spins along angular momentum of the circularly polarized field. As a result, the pulse-induced magnetization appears, what can be observed in state-of the-art measurements.
