论文标题
旋转敏感的淬火和环晶格中相干振荡的复兴
Rotation Sensitive Quench and Revival of Coherent Oscillations in a Ring Lattice
论文作者
论文摘要
我们将被困在带有方位角晶格的环形陷阱中的超电原子作为量子光学现象的宏观模拟器。我们研究了晶格的绝热引入所引起的动力学，该晶格逐渐融合了正常模式，作为激光场耦合电子状态的类似物。发现该系统显示出两种不同的行为，体现在角动量中 - 相干振荡和自我捕获 - 让人联想到非线性动力学，但不需要原子间相互作用。选择是由离散参数的相互作用，特定的初始模式和晶格的周期性设置的。但是，旋转会导致两个方案之间的连续过渡，从而导致振荡中的周期性淬火和复兴作为角速度的函数。奇怪的是，旋转的影响完全取决于没有晶格的能量谱，这一特征可以归因于绝热性。我们评估改变晶格参数的效果，并考虑旋转传感中的应用。
We consider ultracold atoms trapped in a toroidal trap with an azimuthal lattice for utility as a macroscopic simulator of quantum optics phenomena. We examine the dynamics induced by the adiabatic introduction of the lattice that serves to couple the normal modes, as an analog of a laser field coupling electronic states. The system is found to display two distinct behaviors, manifest in the angular momentum - coherent oscillation and self-trapping - reminiscent of non-linear dynamics, yet not requiring interatomic interactions. The choice is set by the interplay of discrete parameters, the specific initial mode and the periodicity of the lattice. However, rotation can cause continuous transition between the two regimes, causing periodic quenches and revivals in the oscillations as a function of the angular velocity. Curiously, the impact of rotation is determined entirely by the energy spectrum in the absence of the lattice, a feature that can be attributed to adiabaticity. We assess the effects of varying the lattice parameters, and consider applications in rotation sensing.
