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In pump-probe experiments an intensive laser pulse creates non-equilibrium excited electron distributions in the first few hundred femtoseconds after the pulse. The influence of non-equilibrium electron distributions caused by a pump laser…

Materials Science · Physics 2009-06-10 K. Carva , D. Legut , P. M. Oppeneer

A collective, macroscopic signature to detect radiation friction in laser-plasma experiments is proposed. In the interaction of superintense circularly polarized laser pulses with high density targets, the effective dissipation due to…

Plasma Physics · Physics 2016-08-03 T. V. Liseykina , S. V. Popruzhenko , A. Macchi

Multiphoton ionization of sodium by laser pulses of 800 nm wavelength and 57 fs duration is studied in the range of laser peak intensities belonging to over-the-barrier ionization regime. Photoelectron momentum distributions (PMD) and the…

Atomic Physics · Physics 2019-03-21 Andrej Bunac , Duška B. Popović , Nenad S. Simonović

It is important to understand the strong external magnetic field generated at the very beginning of high energy nuclear collisions. We study the effect of the magnetic field on the charmonium yield and anisotropic distribution in Pb+Pb…

High Energy Physics - Phenomenology · Physics 2016-11-15 Xingyu Guo , Shuzhe Shi , Nu Xu , Zhe Xu , Pengfei Zhuang

The main issue of the pulsar magnetosphere is how the rotation power is converted into both particle beams which causes pulsed emissions, and a highly relativistic wind of electron-positron plasmas which forms surrounding nebulae shining in…

High Energy Astrophysical Phenomena · Physics 2015-05-30 Tomohide Wada , Shinpei Shibata

In this article, we investigate the impact of twisted space-time on the photoelectric effect, i.e., we derive the $\theta$-deformed threshold frequency. In such a way we indicate that the space-time noncommutativity strongly enhances the…

High Energy Physics - Theory · Physics 2016-05-19 Marcin Daszkiewicz

Double ionization in intense laser fields can comprise electron correlations, which manifest in the non-independent emission of two electrons from an atom or molecule. However, experimental methods that directly access the electron emission…

We employ a recently developed three-dimensional semiclassical model to identify nondipole effects in triple ionization of Ne driven by infrared laser pulses at intensities where electron-electron correlation prevails. This model fully…

Atomic Physics · Physics 2023-02-28 Georgios Petros Katsoulis , Matthew Benjamin Peters , Agapi Emmanouilidou

A simulation study of the magnetic electron drift vortex (MEDV) mode turbulence in a magnetoplasma in the presence of inhomogeneities in the plasma temperature and density, as well as in the external magnetic field, is presented. The study…

Plasma Physics · Physics 2015-05-13 Dastgeer Shaikh , B Eliasson , P K Shukla

We study ionization of atoms in strong elliptically-polarized laser fields numerically and analytically. We focus on effects of laser ellipticity on the offset angle in photoelectron momentum distribution. This angle is considered to encode…

Atomic Physics · Physics 2023-04-26 J. Y. Che , J. Y. Huang , F. B. Zhang , C. Chen , G. G. Xin , Y. J. Chen

We study the possibility that the magnetic dipole moment of light charged vector mesons could be measured from their effects in \tau^- --> V^-\nu_{\tau}\gamma decays. We conclude that the energy spectrum and angular distribution of photons…

High Energy Physics - Phenomenology · Physics 2009-10-31 G. Lopez Castro , G. Toledo Sanchez

The assistance of an intense optical laser pulse on electron-positron pair production by the Breit-Wheeler and Schwinger processes in XFEL fields is analyzed. The impact of a laser beam on high-energy photon collisions with XFEL photons…

High Energy Physics - Phenomenology · Physics 2016-04-04 T. Nousch , A. Otto , D. Seipt , B. Kämpfer , A. I. Titov , D. Blaschke , A. D. Panferov , S. A. Smolyansky

The evolution of non-potential perturbations to a current-free magnetic X-point configuration is studied, taking into account electron inertial effects as well as resistivity. Electron inertia is shown to have a negligible effect on the…

Astrophysics · Physics 2009-11-10 K. G. McClements , A. Thyagaraja , N. Ben Ayed , L. Fletcher

We propose a new scenario to apply IR-pump-XUV-probe schemes to resolving strong field ionization induced and attosecond pulse driven electron-hole dynamics and coherence in real time. The coherent driving of both the infrared laser and the…

Atomic Physics · Physics 2016-02-26 Jing Zhao , Jianmin Yuan , Zengxiu Zhao

We revisit the relationship between electric polarization modulation $\Delta P$ in ferroelectrics induced by a low-frequency pulsed electric field and the corresponding second harmonic intensity modulation $\Delta I_{\mathrm{SH}}$. Using…

Materials Science · Physics 2025-09-30 Atsushi Ono

We investigate the possibility to deduce momentum space properties from time-dependent density functional calculations. Electron and ion momentum distributions after double ionization of a model Helium atom in a strong few-cycle laser pulse…

Atomic Physics · Physics 2009-11-13 F. Wilken , D. Bauer

The competition between intra molecular charge redistribution and fragmentation has been studied in small molecules containing iodine by using intense ultrashort pulses in the extreme ultraviolet regime (XUV). We show that after an element…

Numerical simulations of the propagation of charged particles through magnetic fields solving the equation of motion often leads to the usage of an interpolation in case of discretely defined magnetic fields, typically given on a…

High Energy Astrophysical Phenomena · Physics 2021-07-14 L. Schlegel , A. Frie , B. Eichmann , P. Reichherzer , J. Becker Tjus

Magnetars are among the most extreme laboratories in the universe, harboring surface magnetic fields reaching $10^{15}$~G. At these supercritical scales, Maxwell's linear electrodynamics is superseded by Nonlinear Electrodynamics (NLED).…

High Energy Astrophysical Phenomena · Physics 2026-05-19 Gabriel A. Porto , Jonas P. Pereira , Eduardo Bittencourt , Elda Guzmán-Herrera

We present a theoretical study of atomic laser-assisted photoionization emission (LAPE). We consider an atom driven by a linearly polarized XUV laser in two different scenarios: i) a single attosecond pulse (in both the streaking and…

Atomic Physics · Physics 2020-10-21 Renata Della Picca , Marcelo F. Ciappina , Maciej Lewenstein , Diego G. Arbó