Zobrazeno 1 - 10
of 349
pro vyhledávání: '"Krajewska K"'
A comprehensive theoretical approach to describe the electron-ion radiative recombination in the presence of intense, short laser pulses, which accounts for nondipole corrections is presented. It is based on the relativistic Coulomb-Volkov solution d
Externí odkaz:
http://arxiv.org/abs/2405.06322
Dynamical Sauter-Schwinger mechanism of electron-positron pair creation by a time-dependent electric field pulses is considered using the $S$-matrix approach and reduction formulas. They lead to the development of framework based on the solutions of
Externí odkaz:
http://arxiv.org/abs/2403.15206
Publikováno v:
Acta Phys. Pol. A 143, S18 (2023)
Vortex pattern formation in electron-positron pair creation from vacuum by a time-dependent electric field of linear polarization is analyzed. It is demonstrated that in such scenario the momentum distributions of created particles exhibit vortex-ant
Externí odkaz:
http://arxiv.org/abs/2306.07668
A general method for solving numerically the time-dependent Schr\"odinger equation, that is based on the Suzuki-Trotter scheme with the split-step Fourier approach, is introduced. The method relies on a Hamiltonian decomposition, where except of the
Externí odkaz:
http://arxiv.org/abs/2211.15126
Autor:
Kamiński, J. Z., Krajewska, K.
General formulation in the realm of strong-field quantum electrodynamics is provided for a process that occurs in the presence of a train of laser pulses and, in the tree level, is represented by a two-vertex Feynman diagram with exchange of a virtua
Externí odkaz:
http://arxiv.org/abs/2211.04716
Formation of electron vortices and momentum spirals in photodetachment of the H$^-$ anion driven by isolated ultrashort laser pulses of circular polarization or by pairs of such pulses (of either corotating or counterrotating polarizations) are analy
Externí odkaz:
http://arxiv.org/abs/2205.08655
Ionization of atoms and molecules in laser fields can lead to various interesting interference structures in the photoelectron spectrum. For the case of a super-intense extreme ultraviolet laser pulse, we identify a novel petal-like interference stru
Externí odkaz:
http://arxiv.org/abs/2203.14192
Autor:
Krajewska, K., Kamiński, J. Z.
Publikováno v:
Phys. Rev. A 100, 062116 (2019)
Dynamical Sauter-Schwinger mechanism of pair creation by a time-dependent electric field comprising of $N_{\rm rep}$ identical pulses is analyzed within the framework of the spinor and scalar quantum electrodynamics. For linearly polarized pulses, bo
Externí odkaz:
http://arxiv.org/abs/1909.12284
Autor:
Krajewska, K., Kamiński, J. Z.
Publikováno v:
Phys. Rev. A 100, 012104 (2019)
Momentum distributions of electron-positron pairs created from the vacuum by an oscillating in time electric field are calculated in the framework of quantum field theory. A pronounced enhancement of those distributions is observed as the frequency o
Externí odkaz:
http://arxiv.org/abs/1811.07528
Publikováno v:
Journal of Physics: Conf. Series 1206, 012004 (2019)
The domain of validity of the Coulomb-Corrected Strong Field Approximation (CCSFA) is going to be analyzed in relation to the semi-classical dynamics of electrons during ionization of hydrogen-like targets. Our analysis is limited to ionization drive
Externí odkaz:
http://arxiv.org/abs/1807.08285