论文标题
电场引起的波动动力学和三叶虫分子的几何重排
Electric field-induced wave-packet dynamics and geometrical rearrangement of trilobite Rydberg molecules
论文作者
论文摘要
我们研究了暴露于均匀电场的超长三叶岩分子的量子动力学。三叶岩分子由rydberg原子和一个地下原子组成，由于rydberg电子在地面原子上散射，该原子在振荡电势中被困在振荡电势中。在出生的脑元素近似中，我们在弱电场中得出了二维绝热电子势能表面的分析表达，有效期为500 v/m。这用于阐明采用多配合时间依赖性的Hartree方法的分子量子动力学。进行电场的淬火以触发波数据包动力学，包括场反转情况。根据初始波数据包，我们观察到径向井内和孔间的振荡以及各个单体概率密度的角度振荡和旋转。确定了控制分子构型的机会，一个特定的例子是将不同的分子键长度叠加到电场的周期性淬火的可能性。
We investigate the quantum dynamics of ultra-long-range trilobite molecules exposed to homogeneous electric fields. A trilobite molecule consists of a Rydberg atom and a ground-state atom, which is trapped at large internuclear distances in an oscillatory potential due to scattering of the Rydberg electron off the ground-state atom. Within the Born-Oppenheimer approximation, we derive an analytic expression for the two-dimensional adiabatic electronic potential energy surface in weak electric fields valid up to 500 V/m. This is used to unravel the molecular quantum dynamics employing the Multi-Configurational Time-Dependent Hartree method. Quenches of the electric field are performed to trigger the wave packet dynamics including the case of field inversion. Depending on the initial wave packet, we observe radial intra-well and inter-well oscillations as well as angular oscillations and rotations of the respective one-body probability densities. Opportunities to control the molecular configuration are identified, a specific example being the possibility to superimpose different molecular bond lengths by a series of periodic quenches of the electric field.
