论文标题
在光学晶格时钟建模运动能量光谱和晶格光移动
Modeling motional energy spectra and lattice light shifts in optical lattice clocks
论文作者
论文摘要
我们开发了一个模型来描述被困在一维光学晶格中的原子的动作（即外部自由度），同时考虑了相对于晶格轴的轴向和径向限制。我们的模型尊重轴向和径向自由度之间的耦合，以及限制潜力固有的其他非谐度。我们进一步证明了如何使用模型来表征光学晶格时钟中的晶格光移，包括由于较高的多极（磁性偶极子和电动四极杆）以及较高的（超极化性）耦合到晶格场而引起的变化。我们将模型的结果与在类似条件下文献中其他晶格光移模型的结果进行了比较。
We develop a model to describe the motional (i.e., external degree of freedom) energy spectra of atoms trapped in a one-dimensional optical lattice, taking into account both axial and radial confinement relative to the lattice axis. Our model respects the coupling between axial and radial degrees of freedom, as well as other anharmonicities inherent in the confining potential. We further demonstrate how our model can be used to characterize lattice light shifts in optical lattice clocks, including shifts due to higher multipolar (magnetic dipole and electric quadrupole) and higher order (hyperpolarizability) coupling to the lattice field. We compare results for our model with results from other lattice light shift models in the literature under similar conditions.
