论文标题
Rydberg原子天线在强驱动的多电子原子中
Rydberg Atomic Antenna in Strongly Driven Multi-Electron Atoms
论文作者
论文摘要
我们研究了Rydberg状态的中间激发的作用，是Kuchiev的“原子天线”在Xenon阈值上离子化中的一个例子，特别是它们对离子旋转轨道分裂状态之间的相干性的影响。我们专注于与自旋轨道分裂接近谐振的激光频率的情况，在这种情况下，对称性（平等）参数将排除强场电离直接产生的任何连贯性。使用在强激光场中耦合的多电体自旋 - 轨道动力学的初始模拟，我们显示了被困的Rydberg电子的野外驱动撤销如何引入自旋 - 轨道分布通道之间的有效耦合，从而导致大量的相干，超过某些光子能量的10％。
We study the role of intermediate excitations of Rydberg states as an example of Kuchiev's "atomic antenna" in above-threshold ionization of xenon, in particular their effect on the coherence between the spin-orbit-split states of the ion. We focus on the case of a laser frequency close to resonant with the spin-orbit splitting, where a symmetry (parity) argument would preclude any coherence being directly generated by strong-field ionization. Using ab initio simulations of coupled multielectron spin-orbit dynamics in strong laser fields, we show how field-driven rescattering of the trapped Rydberg electrons introduces efficient coupling between the spin-orbit-split channels, leading to substantial coherences, exceeding 10 % for some photon energies.
