4 papers
Dynamical Sauter-Schwinger pair creation process from Feynman perspective: Comparison of boundary- and initial-value approaches
J. Z. KamiÅski, A. Bechler, M. M. Majczak +1
We investigate the dynamical Sauter-Schwinger pair creation process from the vacuum by an electromagnetic background field using two alternative approaches. The first one is based…
Photoelectron combs in ionization: Influence of rescattering and nondipole effects
J. Z. KamiÅski, K. Krajewska
Ionization by a sequence of extreme ultraviolet pulses is investigated based on the rigorous numerical solution of the time-dependent Schrödinger equation, when the driving laser…
Spirals, vortices, and helicity entanglements in dynamical Sauter-Schwinger pair creation
M. M. Majczak, K. Krajewska, A. Bechler +1
We study helicity correlations of electron-positron pairs created by a homogeneous time-dependent electric field in the Sauter-Schwinger scenario. Our analysis is based on solving…
Multiphoton ionization distributions beyond the dipole approximation: Retardation versus recoil corrections
J. Z. KamiÅski, K. Krajewska
We study nondipole effects in multiphoton ionization of a two-dimensional hydrogen-like atom by a flat-top laser pulse of varied intensity. For this purpose, we solve numerically a…