Numerical Detector Theory for the Longitudinal Momentum Distribution of the Electron in Strong Field Ionization

Tian, Justin; Wang, Xu; Eberly, J. H.

doi:10.1103/physrevlett.118.213201

Cited by 27 publications

(22 citation statements)

References 31 publications

(24 reference statements)

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“…This reduces the computational load of numerically difficult strong-field problems. Recently the VD approach was used for study of tunneling times [45] and longitudinal momentum distributions [46] in strong-field ionization.…”

Section: Introductionmentioning

confidence: 99%

Semiclassical two-step model with quantum input: Quantum-classical approach to strong-field ionization

Shvetsov-Shilovski

Lein

2019

Phys. Rev. A

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We present a mixed quantum-classical approach to strong-field ionization -a semiclassical two-step model with quantum input. In this model the initial conditions for classical trajectories that simulate electron wave packet after ionization are determined by the exact quantum dynamics. As a result, the model allows to overcome deficiencies of standard semiclassical approaches in describing the ionization step. The comparison with the exact numerical solution of the time-dependent Schrödinger equation shows that for ionization of a one-dimensional atom the model yields quantitative agreement with the quantum result. This applies both to the width of the photoelectron momentum distribution and the interference structure. * n79@narod.ru

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Section: Introductionmentioning

confidence: 99%

Semiclassical two-step model with quantum input: Quantum-classical approach to strong-field ionization

Shvetsov-Shilovski

Lein

2019

Phys. Rev. A

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“…3a-c show the crucial impact of the electronic structure on the initial conditions of the electron at birth. However, a quantitative evaluation of the initial conditions of the electron at tunnelling is challenging [41][42][43] . In general, they are defined by the tunnel-exit position as well as by the temporal phase and the momentum acquired during the ionisation with respect to the external field.…”

Section: Discussionmentioning

confidence: 99%

Setting the photoelectron clock through molecular alignment

et al. 2020

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The interaction of strong laser fields with matter intrinsically provides a powerful tool for imaging transient dynamics with an extremely high spatiotemporal resolution. Here, we study strong-field ionisation of laser-aligned molecules, and show a full real-time picture of the photoelectron dynamics in the combined action of the laser field and the molecular interaction. We demonstrate that the molecule has a dramatic impact on the overall strong-field dynamics: it sets the clock for the emission of electrons with a given rescattering kinetic energy. This result represents a benchmark for the seminal statements of molecular-frame strong-field physics and has strong impact on the interpretation of self-diffraction experiments. Furthermore, the resulting encoding of the time-energy relation in molecular-frame photoelectron momentum distributions shows the way of probing the molecular potential in real-time, and accessing a deeper understanding of electron transport during strong-field interactions.

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“…(See, e.g., a summary of several different criteria in [36]) What should be the velocity of the electron at the tunneling exit point? [37][38][39][40][41][42] It is found that the final electron momentum distribution depends sensitively on how these initial conditions are assigned.…”

Section: Introductionmentioning

confidence: 99%

“…The VD method has been shown to yield good agreements with TDSE calculations on photoelectron momentum distributions [43,44,48], although quantum interferences are necessarily lost due to the transformation to classical trajectories. Besides, the VD technique has been found very useful in gaining insights into the ultrafast ionization process [41,42,[49][50][51]. The goal of the current paper is to present a further development of the VD method.…”

Section: Introductionmentioning

confidence: 99%

Extended virtual detector theory including quantum interferences

Xu¹,

Xu²,

Eberly³

2020

Preprint

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We extend our earlier "virtual detector" method [X. Wang, J. Tian, and J. H. Eberly, Phys. Rev. Lett. 110, 243001 (2013)], a hybrid quantum mechanical and classical trajectory method, to include phases in the classical trajectories. Effects of quantum interferences, lost in the earlier method, are restored. The obtained photoelectron momentum distributions agree well with the corresponding numerical solutions of the time-dependent Schrödinger equation.

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Numerical Detector Theory for the Longitudinal Momentum Distribution of the Electron in Strong Field Ionization

Cited by 27 publications

References 31 publications

Semiclassical two-step model with quantum input: Quantum-classical approach to strong-field ionization

Semiclassical two-step model with quantum input: Quantum-classical approach to strong-field ionization

Setting the photoelectron clock through molecular alignment

Extended virtual detector theory including quantum interferences

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