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A: Fachverband Atomphysik

A 19: Interaction with strong or short laser pulses II

A 19.6: Vortrag

Mittwoch, 11. März 2020, 15:30–15:45, f107

Semiclassical two-step model with quantum input — •Nikolay Shvetsov-Shilovski and Manfred Lein — Leibniz Universität Hannover

Semiclassical models employing classical trajectories are one of the main approaches in strong-field physics. The analysis of the classical trajectories makes it possible to understand the physical picture of the phenomenon under study.

Here we present a semiclassical two-step model with quantum input (SCTSQI) [1]. In the SCTSQI the initial conditions for classical trajectories are determined by the exact quantum dynamics. Therefore, the SCTSQI corrects the inaccuracies of the semiclassical two-step model (SCTS) [2] in description of the tunneling step. We show that for ionization of a one-dimensional atom the SCTSQI model yields quantitative agreement with the numerical solution of the time-dependent Schrödinger equation.

[1] N. I. Shvetsov-Shilovski and M. Lein, Phys. Rev A 100, 053411 (2019).

[2] N. I. Shvetsov-Shilovski, M. Lein, L. B. Madsen et al., Phys. Rev. A 94, 013415 (2016).