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Production of electron-positron pairs from vacuum in strong bichromatic electric fields, oscillating in time with a fundamental frequency and its second harmonic, is studied. Strong-field processes occuring in such field configurations are…

Atomic Physics · Physics 2020-04-15 J. Braß , R. Milbradt , S. Villalba-Chávez , G. G. Paulus , C. Müller

In the framework of QED, scalar pair production by a single linearly polarized high-energy photon in the presence of an external Aharonov-Bohm potential is investigated. The exact scattering solutions of the Klein-Gordon equation in…

High Energy Physics - Theory · Physics 2011-07-19 G. Y. Shahin , M. S. Shikakhwa

Particle production due to external fields (electric, chromo-electric or gravitational) requires evolving an initial state through an interaction with a time-dependent background, with the rate being computed from a Bogoliubov…

High Energy Physics - Theory · Physics 2010-11-11 Cesim K. Dumlu , Gerald V. Dunne

We calculate tree--level currents of created particles in strong background electric fields in 4D QED for various initial states. Namely, we do that in pulse background for initial vacuum and thermal states at past infinity. In both cases…

High Energy Physics - Theory · Physics 2021-08-04 E. T. Akhmedov , A. V. Anokhin , D. I. Sadekov

We investigate the theory of particles with arbitrary spin and anomalous magnetic moment in the Lorentz representation (0,s)X(s,0), in an external constant and uniform electromagnetic field. We obtain the density matrix of free particles in…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. I. Kruglov

The processes of the photon and electron-positron pair production by a neutrino propagating in a strong magnetic field are investigated in the framework of the Standard Model. The process probabilities and the mean values of the neutrino…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. A. Gvozdev , A. V. Kuznetsov , N. V. Mikheev , L. A. Vassilevskaya

The Sauter-Schwinger effect predicts the creation of electron-positron pairs out of the quantum vacuum by a strong and slowly varying electric field. This effect can be dynamically assisted by an additional weaker time-dependent field,…

High Energy Physics - Theory · Physics 2017-06-28 Greger Torgrimsson , Christian Schneider , Johannes Oertel , Ralf Schützhold

We study the dynamical Schwinger effect in the vacuum excitation of the electron-positron plasma under action of a "laser pulse" of the simplest configuration: a linearly polarized, time-dependent and spatially homogeneous electric field.…

Plasma Physics · Physics 2015-09-04 D. Blaschke , L. Juchnowski , A. Panferov , S. Smolyansky

By using Dirac-Heisenberg-Wigner formalism we study electron-positron pair production for linear, elliptic, nearly circular and circular polarizations of electric fields with symmetrical frequency chirp, and we obtain Momentum spectra and…

High Energy Physics - Phenomenology · Physics 2021-08-11 Kun Wang , Xuehua Hu , Sayipjamal Dulat , B. S. Xie

In this work I studied the production of particles (electron-positron pairs and photons) in the presence of overcritic ($\gg 4.4\cdot 10^{13} \text{gauss}$) slowly varying magnetic fields. The calculations are performed in the framework of…

High Energy Physics - Phenomenology · Physics 2007-05-23 Antonino Di Piazza

Schwinger pair production is analyzed in a BPST instanton background and in its SL$(2,\mathbb{C})$ complex extension for complex scalar particles. A non-Abelian extension of the worldline instanton method is utilized, wherein Wong's…

High Energy Physics - Theory · Physics 2021-02-12 Patrick Copinger , Pablo Morales

Magnetic monopoles may be produced by the Schwinger effect in the strong magnetic fields of peripheral heavy-ion collisions. We review the form of the electromagnetic fields in such collisions and calculate from first principles the cross…

High Energy Physics - Theory · Physics 2019-08-07 Oliver Gould , David L. -J. Ho , Arttu Rajantie

A quantum kinetic equation is derived for the description of pair production in a time-dependent homogeneous electric field $E(t)$. As a source term, the Schwinger mechanism for particle creation is incorporated. Possible particle…

High Energy Physics - Phenomenology · Physics 2015-06-25 S. Schmidt , D. Blaschke , G. Röpke , S. A. Smolyansky , A. V. Prozorkevich , V. D. Toneev

Electron-positron pair production in combined laser and Coulomb fields is studied. To this end, the Feynman diagram for multiphoton pair creation by muon impact on a circularly polarized high-frequency laser beam is evaluated within the…

High Energy Physics - Phenomenology · Physics 2009-11-06 Sarah J. Müller , Carsten Müller

We derive the pair-production probability in a constant electric field in Rindler coordinates in a quasi-classical approximation. Our result is different from the pair-production probability in an inertial frame (Schwinger formula). In…

High Energy Physics - Phenomenology · Physics 2008-11-26 Kirill Tuchin

Solutions to the backreaction equation in 1+1-dimensional semiclassical electrodynamics are obtained and analyzed when considering a time-varying homogeneous electric field initially generated by a classical electric current, coupled to…

General Relativity and Quantum Cosmology · Physics 2021-05-12 Silvia Pla , Ian M. Newsome , Robert S. Link , Paul R. Anderson , Jose Navarro-Salas

The production probability of an $e^--e^+$ pair in the presence of a strong, uniform and slowly varying magnetic field is calculated by taking into account the presence of a background gravitational field. The curvature of the spacetime…

High Energy Physics - Phenomenology · Physics 2018-08-01 Antonino Di Piazza

We study particle and chirality production from the vacuum in the presence of a slow strong parallel electromagnetic field superimposed by a fast weak perturbative electromagnetic field. We derive an analytical formula for the particle and…

High Energy Physics - Phenomenology · Physics 2020-07-01 Hidetoshi Taya

We study particles creation in arbitrary space-time dimensions by external electric fields, in particular, by fields, which are acting for a finite time. The time and dimensional analysis of the vacuum instability is presented. It is shown…

High Energy Physics - Theory · Physics 2014-11-18 S. P. Gavrilov , D. M. Gitman

This paper examines the structure of electric fields and space-times created by extended finite distributions of irrotational static and spherically-symmetric charge. The resulting electric fields are found to source features in space-time…

General Relativity and Quantum Cosmology · Physics 2019-09-04 Erik W. Lentz