Quantum Interference Paves the Way for Long-Lived Electronic Coherences
Quantum Interference Paves the Way for Long-Lived Electronic Coherences
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量子干涉为长期电子相干性铺平了道路
DOI：
10.1103/physrevlett.129.173203
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发表时间：
2022
影响因子：
8.6
通讯作者：
Dey D
中科院分区：
文献类型：
--
作者：
Dey D
利用多组态含时Hartree方法和电离连续模型哈密顿量，研究了多原子分子在极紫外脉冲宽带电离下产生的相干叠加态的产生和动力学命运.空穴态之间的电子相干性通常持续到核动力学导致退相干。阿秒科学的一个关键目标是控制电子运动和设计激光控制方案，以保持这种相干性更长的时间尺度。在这里，我们调查这种可能性，使用时间延迟的脉冲，并显示这是如何开辟了电荷迁移现象的相干控制的前景。
The creation and dynamical fate of a coherent superposition of electronic states generated in a polyatomic molecule by broadband ionization with extreme ultraviolet pulses is studied using the multiconfiguration time-dependent Hartree method together with an ionization continuum model Hamiltonian. The electronic coherence between the hole states usually lasts until the nuclear dynamics leads to decoherence. A key goal of attosecond science is to control the electronic motion and design laser control schemes to retain this coherence for longer timescales. Here, we investigate this possibility using time-delayed pulses and show how this opens up the prospect of coherent control of charge migration phenomenon.