标题： 氦原子在组合周期场和静态场下的Floquet工程非色散波包 显示英文标题

标题： Floquet-engineered nondispersive wave packets in helium under combined periodic and static fields

摘要： 我们报告了在完全三维氦原子中受到线性极化单色场作用时，观察到的双电子非弥散波包。 这些局域量子态遵循经典三体库仑系统的周期轨迹而没有弥散。 该系统使用基于库仑-Sturmian函数的谱配置相互作用方法进行建模，结合了Floquet理论和复数缩放技术。 所得的准能量谱揭示了长寿命Floquet态的存在，这些态来源于冻结行星构型之间的近共振耦合。 显示英文摘要

摘要： We report the numerical observation of two-electron nondispersive wave packets in fully three-dimensional helium subjected to a linearly polarized monochromatic field. These localized quantum states follow periodic trajectories of the classical three-body Coulomb system without dispersion. The system is modeled using a spectral configuration interaction approach based on Coulomb-Sturmian functions, combined with Floquet theory and complex scaling. The resulting quasienergy spectrum reveals the existence of long-lived Floquet states arising from near-resonant coupling between frozen planet configurations.