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We calculate stationary configurations of rapidly rotating compact stars in general relativity, to study the properties of circular orbits of test particles in the equatorial plane. We search for simple, but precise, analytical formulae for…

Solar and Stellar Astrophysics · Physics 2011-06-14 M. Bejger , J. L. Zdunik , P. Haensel

The behavior of an electron spin interacting with a linearly polarized laser field is analyzed. In contrast to previous considerations of the problem, the initial state of the electron represents a localized wave packet, and a spatial…

Quantum Physics · Physics 2020-08-12 I. A. Aleksandrov , D. A. Tumakov , A. Kudlis , V. M. Shabaev , N. N. Rosanov

This paper presents a brief review of the newly developed \emph{Extended Electrodynamics}. The relativistic and non-relativistic approaches to the extension of Maxwell equations are considered briefly, and the further study is carried out…

High Energy Physics - Theory · Physics 2007-05-23 Stoil Donev , Maria Tashkova

Upcoming and planned experiments combining increasingly intense lasers and energetic particle beams will access new regimes of nonlinear, relativistic, quantum effects. This improved experimental capability has driven substantial progress…

High Energy Physics - Phenomenology · Physics 2023-03-02 A. Fedotov , A. Ilderton , F. Karbstein , B. King , D. Seipt , H. Taya , G. Torgrimsson

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…

Quantum Physics · Physics 2024-05-13 Deeksha Kanti , M. M. Majczak , J. Z. Kamiński , Liang-You Peng , K. Krajewska

We present for the first time the nonlinear dynamics of quantum electrodynamic (QED) photon splitting in a strongly magnetized electron-positron (pair) plasma. By using a QED corrected Maxwell equation, we derive a set of equations that…

Astrophysics · Physics 2008-11-26 G. Brodin , M. Marklund , B. Eliasson , P. K. Shukla

A theoretical study of some electrodynamic features of a region close to a {\it slowly-rotating} magnetized relativistic star is performed. To be a little more specific, based on the solution-generating method given by Wald, the magnetic…

Astrophysics · Physics 2007-05-23 Hongsu Kim , Hyung Mok Lee , Chul H. Lee , Hyun Kyu Lee

We study in detail the strong-field QED process of non-linear Compton scattering in short intense plane wave laser pulses of circular polarization. Our main focus is placed on how the spectrum of the back-scattered laser light depends on…

High Energy Physics - Phenomenology · Physics 2016-03-22 Daniel Seipt , Vasily Kharin , Sergey Rykovanov , Andrey Surzhykov , Stephan Fritzsche

Kinematical relativistic effects are analyzed within the plane-wave impulse approximation for outgoing nucleon polarized responses in coincidence electron scattering. Following recent approaches for non-relativistic reductions of the…

Nuclear Theory · Physics 2016-08-16 M. C. Martínez , J. A. Caballero , T. W. Donnelly

QED radiative corrections to polarized muon decay spectrum are considered. Leading and next--to--leading logarithmic approximations are used. Exponentiation of soft radiation is discussed. The present theoretical uncertainty of the spectrum…

High Energy Physics - Phenomenology · Physics 2009-11-07 Andrej Arbuzov

Based on a linear and non-linear study of radial pulsations in the envelopes of classical novae (Schenker 1999), I discuss the results both from the point of view of pulsation theory as well as their consequences for current nova models.…

Astrophysics · Physics 2007-05-23 Klaus Schenker

The dynamics of charged particles in electromagnetic fields is an essential component of understanding the most extreme environments in our Universe. In electromagnetic fields of sufficient magnitude, radiation emission dominates the…

Plasma Physics · Physics 2023-04-25 A. Gonoskov , T. G. Blackburn , M. Marklund , S. S. Bulanov

We investigate the propagation of nonlinear energy density waves in a nonextensive quark-gluon plasma under the influence of a magnetic field using the reductive perturbation technique. For a nonextensive MIT bag equation of state, we…

High Energy Physics - Phenomenology · Physics 2024-03-19 Trambak Bhattacharyya , Md Hasanujjaman

We calculate the first order maximal acceleration corrections to the classical electrodynamics of a particle in external electromagnetic fields. These include additional dissipation terms, the presence of a critical electric field, a…

High Energy Physics - Theory · Physics 2007-05-23 A. Feoli , G. Lambiase , G. Papini , G. Scarpetta

As demonstrated in our previous work [J. Chem. Phys. 149, 174109 (2018)], the kinetic energy imparted to a quantum rotor by a non-resonant electromagnetic pulse with a Gaussian temporal profile exhibits quasi-periodic drops as a function of…

Quantum Physics · Physics 2021-12-22 Mallikarjun Karra , Bretislav Friedrich , Burkhard Schmidt

With the aid of large-scale three-dimensional QED-PIC simulations, we describe a realistic experimental configuration to measure collective effects that couple strong field quantum electrodynamics to plasma kinetics. For two counter…

Plasma Physics · Physics 2015-05-20 Peng Zhang , A. G. R. Thomas , C. P. Ridgers

Electromagnetic cascades attract a lot of attention as an important QED effect that will reveal itself in various electromagnetic field configurations at ultrahigh intensities. We study cascade dynamics in rotating electric field…

High Energy Physics - Phenomenology · Physics 2015-05-28 E. N. Nerush , V. F. Bashmakov , I. Yu. Kostyukov

Motivated by several recent papers on string-inspired calculations in QED, we here present our own use of world-line techniques in order to calculate the vacuum polarization and effective action in scalar and spinor QED with external…

High Energy Physics - Theory · Physics 2009-10-31 W. Dittrich , R. Shaisultanov

Radiation reaction has been investigated traditionally in classical dynamics and recently in non-linear QED for high-intensity field physics by high-intensity lasers. The non-linearity of QED is predicted as the coupling between a highly…

Mathematical Physics · Physics 2017-08-25 Keita Seto

We study in the quasiclassical approximation the radiation reaction and its influence on the space-time evolution for the small relativistic dipole moving in a constant external electromagnetic field in QED.

High Energy Physics - Phenomenology · Physics 2009-11-10 B. Blok