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An exact solution of the Dirac equation in the presence of an arbitrary electromagnetic plane wave is found, which corresponds to a focused electron wave packet, with the focus of the wave packet moving at the speed of light in the opposite…

High Energy Physics - Phenomenology · Physics 2024-09-24 Antonino Di Piazza , Martin Formanek , Dillon Ramsey , John P. Palastro

We investigate the radiation emitted by an ultrarelativistic electron traveling in a 1-dimensional parabolic potential. Having in mind a simplified model for beamstrahlung, we consider the realistic case of the electron motion being highly…

High Energy Physics - Phenomenology · Physics 2018-08-29 Tobias N. Wistisen , Antonino Di Piazza

An effective model for describing the relativistic quantum dynamics of a radiating electron is developed via a relativistic generalization of the Lindblad master equation. By incorporating both radiation reaction and vacuum fluctuations…

Quantum Physics · Physics 2026-01-01 Andre G. Campos , Karen Z. Hatsagortsyan , Christoph H. Keitel

Spontaneous emission of the quantum system driven by a high intensity classical laser field is analyzed. The study is based on the accurate consideration of quantum system interaction with vacuum quantized field modes in the first order of…

Atomic Physics · Physics 2017-01-23 A. V. Bogatskaya , E. A. Volkova , A. M. Popov

Closed-form, normalizable solutions of Dirac's equation propagating within a semi-infinite cylindrical waveguide are obtained in terms of ordinary and modified Bessel functions. These relativistic wave packets induce quantum backflow on a…

Quantum Physics · Physics 2021-12-28 Siddhant Das

There are important differences between the nonrelativistic and relativistic description of electron beams. The orbital angular momentum quantum number cannot be used to specify the wave functions in the relativistic case. In this Letter we…

Quantum Physics · Physics 2017-03-17 Iwo Bialynicki-Birula , Zofia Bialynicka-Birula

Soon available multi petawatt ultra-high-intensity (UHI) lasers will allow us to probe high-amplitude electromagnetic fields interacting with either ultra-relativistic electron beams or hot plasmas in the so-called moderately quantum…

Plasma Physics · Physics 2018-08-01 F. Niel , C. Riconda , F. Amiranoff , M. Lobet , J. Derouillat , F. Pérez , T. Vinci , M. Grech

After the clasical approach to acceleration of a charged particle by delta-form impulsive force, we consider the corresponding quantum theory based on the Volkov solution of the Dirac equation. We determine the modified Compton formula for…

High Energy Physics - Phenomenology · Physics 2007-05-23 Miroslav Pardy

Resonance fluorescence of laser-driven highly charged ions is studied in the relativistic regime by solving the time-dependent master equation in a multi-level model. Our ab initio approach based on the Dirac equation allows for…

Quantum Physics · Physics 2015-05-20 O. Postavaru , Z. Harman , C. H. Keitel

We examine the radiation spectra from relativistic electrons moving in a Langmuir turbulence expected to exist in high energy astrophysical objects by using numerical method. The spectral shape is characterized by the spatial scale…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Yuto Teraki , Fumio Takahara

A solution of the Dirac equation in a strong laser field presenting a nonspreading wave packet in the rest frame of the electron is derived. It consists of a generalization of the self-accelerating free electron wave packet [Kaminer et al.…

Quantum Physics · Physics 2023-10-16 Andre G. Campos , Karen Z. Hatsagortsyan , Christoph H. Keitel

We calculate numerically the radiation spectrum from relativistic electrons moving in small scale turbulent magnetic fields expected in high energy astrophysical sources. Such radiation spectrum is characterized by the strength parameter $a…

High Energy Astrophysical Phenomena · Physics 2015-05-28 Yuto Teraki , Fumio Takahara

We compute the quantum radiation emitted by wavepackets of relativistic single electrons, both at rest and undergoing uniform acceleration in the Minkowski vacuum of the electromagnetic field. We find that the cubic terms in the original…

High Energy Physics - Theory · Physics 2026-04-13 Shih-Yuin Lin , Bei-Lok Hu

The dynamics and radiation of ultrarelativistic electrons in strong counterpropagating laser beams are investigated. Assuming that the particle energy is the dominant scale in the problem, an approximate solution of classical equations of…

Plasma Physics · Physics 2021-06-21 Q. Z. Lv , E. Raicher , C. H. Keitel , K. Z. Hatsagortsyan

The radiation from a relativistic charged particle uniformly moving through the centre of a dielectric ball is investigated. Analytical expressions for spectral and spectral-angular distributions of the radiated energy are derived and…

Classical Physics · Physics 2015-05-28 Svetlana R. Arzumanyan

We calculate spectra of radiation produced by a relativistic particle in the presence of one-dimensional Langmuir turbulence which might be generated by a streaming instability in the plasma, in particular, in the shock front or at the…

Astrophysics · Physics 2009-06-23 Gregory D. Fleishman , Igor N. Toptygin

We study quantum radiation generated by an accelerated motion of a small body with a refractive index n which differes slightly from 1. To simplify calculations we consider a model with a scalar massless field. We use the perturbation…

General Relativity and Quantum Cosmology · Physics 2011-07-19 V. Frolov , D. Singh

A kinetic theory is developed to describe radiating electrons whose motion is governed by the Lorentz-Dirac equation. This gives rise to a generalized Vlasov equation coupled to an equation for the evolution of the physical submanifold of…

Mathematical Physics · Physics 2015-06-11 A. Noble , J. Gratus , D. A. Burton , D. A. Jaroszynski

This work is dedicated to the study of radiation reaction signatures in the framework of classical and quantum electrodynamics. Since there has been no distinct experimental validation of radiation reaction and its underlying equations so…

High Energy Physics - Phenomenology · Physics 2015-06-18 Norman Neitz , Naveen Kumar , Felix Mackenroth , Karen Z. Hatsagortsyan , Christoph H. Keitel , Antonino Di Piazza

We adopt an open quantum systems perspective to calculate the power spectrum associated with the electric field generated by an atomic dipole moment undergoing resonant laser-driving. This spectrum has a similar shape to the usual Mollow…

Quantum Physics · Physics 2015-06-09 Adam Stokes , Almut Beige
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