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In-plane theory of nonsequential triple ionization
1Department of Physics and Astronomy, University of Rochester, Rochester New York 14627, USA. phayho@pas.rochester.edu
Physical Review Letters
|October 10, 2006
Summary
This study details nonsequential triple ionization in atoms exposed to intense laser pulses. It reveals a complex, multi-electron rescattering process driven by laser forces and electron interactions.
Area of Science:
- Atomic Physics
- Quantum Mechanics
- Laser-Matter Interactions
Background:
- Understanding atomic ionization dynamics is crucial for fields like attosecond science.
- Nonsequential ionization (NI) presents complex electron emission patterns.
- Previous models often simplified the intricate interactions between multiple electrons.
Purpose of the Study:
- To investigate the first-principles, in-plane dynamics of nonsequential triple ionization.
- To elucidate the role of electron-electron correlations and laser forces in multi-electron ejection.
- To explore the rescattering mechanisms in intense laser fields.
Main Methods:
- Utilizing first-principles, in-plane calculations.
- Employing a fully classically correlated description for all electrons.
- Simulating the response of electrons to nuclear attraction, electron-electron repulsion, and laser forces.
Main Results:
- Demonstrated nonsequential triple electron ejection from atoms.
- Observed dynamic electron response to combined nuclear, electron-electron, and laser forces.
- Identified a multielectron, multi-cycle, and multidimensional rescattering sequence.
Conclusions:
- Nonsequential triple ionization is a complex phenomenon driven by correlated electron dynamics.
- Sharp transverse recollimation impacts play a key role in coordinating the ejection process.
- The findings provide insights into fundamental atomic processes under intense laser irradiation.
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