论文标题
旋转轨道耦合的自旋1玻璃气中的动力齐曼共鸣
Dynamical Zeeman resonance in spin-orbit-coupled spin-1 Bose gases
论文作者
论文摘要
我们预测了动态谐振效应，该效应是由外部施加的线性和二次Zeeman场驱动的。假定Bose-Einstein冷凝物是在某些超级Zeeman uslevels的绝对状态下初始化的，并可能突然转移陷阱电位。结果表明，当将Zeeman田地调谐到某些强度时，散发时间平均的质量振荡和Bose-Einstein冷凝物的自旋极化表现出显着的共振峰。这种共振背后的基本物理可以追溯到不同尖晶石状态携带的动力学相的分离干扰。通过分析单个粒子谱，将谐振条件概述为简单的代数关系，连接线性和二次Zeeman场的强度。该特性可能适用于量子信息和量子精度测量。
We predict a dynamical resonant effect, which is driven by externally applied linear and quadratic Zeeman fields, in a spin-orbit-coupled spin-1 Bose-Einstein condensate. The Bose-Einstein condensate is assumed to be initialized in some superposed state of Zeeman sublevels and subject to a sudden shift of the trapping potential. It is shown that the time-averaged center-of-mass oscillation and the spin polarizations of the Bose-Einstein condensate exhibit remarkable resonant peaks when the Zeeman fields are tuned to certain strengths. The underlying physics behind this resonance can be traced back to the out-of-phase interference of the dynamical phases carried by different spinorbit states. By analyzing the single particle spectrum, the resonant condition is summarized as a simple algebraic relation, connecting the strengths of the linear and quadratic Zeeman fields. This property is potentially applicable in quantum information and quantum precision measurement.
