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Strong-field quantum control in the extreme ultraviolet domain using pulse shaping
Nature ( IF 50.5 ) Pub Date : 2024-12-11 , DOI: 10.1038/s41586-024-08209-y
Fabian Richter, Ulf Saalmann, Enrico Allaria, Matthias Wollenhaupt, Benedetto Ardini, Alexander Brynes, Carlo Callegari, Giulio Cerullo, Miltcho Danailov, Alexander Demidovich, Katrin Dulitz, Raimund Feifel, Michele Di Fraia, Sarang Dev Ganeshamandiram, Luca Giannessi, Nicolai Gölz, Sebastian Hartweg, Bernd von Issendorff, Tim Laarmann, Friedemann Landmesser, Yilin Li, Michele Manfredda, Cristian Manzoni, Moritz Michelbach, Arne Morlok, Marcel Mudrich, Aaron Ngai, Ivaylo Nikolov, Nitish Pal, Fabian Pannek, Giuseppe Penco, Oksana Plekan, Kevin C. Prince, Giuseppe Sansone, Alberto Simoncig, Frank Stienkemeier, Richard James Squibb, Peter Susnjar, Mauro Trovo, Daniel Uhl, Brendan Wouterlood, Marco Zangrando, Lukas Bruder

Tailored light–matter interactions in the strong coupling regime enable the manipulation and control of quantum systems with up to unit efficiency1,2, with applications ranging from quantum information to photochemistry3,4,5,6,7. Although strong light–matter interactions are readily induced at the valence electron level using long-wavelength radiation8, comparable phenomena have been only recently observed with short wavelengths, accessing highly excited multi-electron and inner-shell electron states9,10. However, the quantum control of strong-field processes at short wavelengths has not been possible, so far, because of the lack of pulse-shaping technologies in the extreme ultraviolet (XUV) and X-ray domain. Here, exploiting pulse shaping of the seeded free-electron laser (FEL) FERMI, we demonstrate the strong-field quantum control of ultrafast Rabi dynamics in helium atoms with high fidelity. Our approach reveals a strong dressing of the ionization continuum, otherwise elusive to experimental observables. The latter is exploited to achieve control of the total ionization rate, with prospective applications in many XUV and soft X-ray experiments. Leveraging recent advances in intense few-femtosecond to attosecond XUV to soft X-ray light sources, our results open an avenue to the efficient manipulation and selective control of core electron processes and electron correlation phenomena in real time.



中文翻译:


使用脉冲整形的极紫外域中的强场量子控制



在强耦合机制中定制的光-物质相互作用能够以高达单位的效率操纵和控制量子系统1,2,应用范围从量子信息到光化学3,4,5,6,7。尽管使用长波长辐射很容易在价电子水平上诱导强光-物质相互作用8,但直到最近才在短波长中观察到类似的现象,从而获得高度激发的多电子和内壳层电子态9,10。然而,由于在极紫外 (XUV) 和 X 射线领域缺乏脉冲整形技术,到目前为止,短波长强场过程的量子控制是不可能的。在这里,利用种子自由电子激光器 (FEL) FERMI 的脉冲整形,我们以高保真度展示了氦原子中超快拉比动力学的强场量子控制。我们的方法揭示了电离连续体的强烈修饰,否则对于实验可观察物来说是难以捉摸的。后者用于实现对总电离速率的控制,有望在许多 XUV 和软 X 射线实验中得到应用。利用从几飞秒到阿秒的强 XUV 到软 X 射线光源的最新进展,我们的结果为实时有效操纵和选择性控制核心电子过程和电子相关现象开辟了一条途径。

更新日期:2024-12-12
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