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Nondispersive two-electron wave packets in the collinear driven helium atom

机译:共线驱动氦原子中的非色散两电子波包

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摘要

Nondispersive two-electron wave packets are found in the Floquet spectrum of the driven, one-dimensional helium atom. In classical phase space, they are anchored to the principal nonlinear resonance between the collinear frozen planet orbit and the driving field linearly polarized along the orbit. These novel, highly correlated eigenstates of the driven three-body Coulomb problem exhibit lifetimes of the order of 10~3...10~7 periods of the driving field, with strong fluctuations reminiscent of chaos-assisted tunneling.
机译:在被驱动的一维氦原子的Floquet光谱中发现了非分散的两电子波包。在经典相空间中,它们锚定在共线冰冻行星轨道和沿轨道线性极化的驱动场之间的主要非线性共振。被驱动的三体库仑问题的这些新颖的,高度相关的本征态的寿命约为驱动场的10〜3 ... 10〜7个周期,并且具有强烈的波动,让人联想到混沌辅助隧穿。

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