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The electromagnetic field generated by a charged particle moving along a helical orbit inside a dielectric cylinder immersed into a homogeneous medium is investigated. Expressions are derived for the electromagnetic potentials, electric and…

High Energy Physics - Theory · Physics 2008-11-26 A. A. Saharian , A. S. Kotanjyan , M. L. Grigoryan

We give an improved estimate of primordial magnetic fields generated during cosmological first order phase transitions. We examine the charge distribution at the nucleated bubble wall and its dynamics. We consider instabilities on the…

Astrophysics · Physics 2009-10-28 Guenter Sigl , Angela Olinto , Karsten Jedamzik

We study the generation of magnetic fields during the stage of particle production resulting from spinodal instabilities during phase transitions out of equilibrium. The main premise is that long-wavelength instabilities that drive the…

High Energy Physics - Phenomenology · Physics 2009-11-07 D. Boyanovsky , H. J de Vega , M. Simionato

Electromagnetic fields are generated in high energy nuclear collisions by spectator valence protons. These fields are traditionally computed by integrating the Maxwell equations with point sources. One might expect that such an approach is…

High Energy Physics - Phenomenology · Physics 2016-12-21 Robert Holliday , Ryan McCarty , Balthazar Peroutka , Kirill Tuchin

Previously we conjectured that extremely high Electromagnetic (EM) fields in a vacuum generate a gravitational field that causes Maxwell's equations to no longer be linear. This results in a "4-force" in the field configuration space, also…

General Physics · Physics 2023-12-12 Pierre Marx

Detailed physical processes of magnetic field generation from density fluctuations in the pre-recombination era are studied. Solving Maxwell equations and the generalized Ohm's law, the evolutions of the net charge density, the electric…

Astrophysics · Physics 2008-11-26 Keitaro Takahashi , Kiyotomo Ichiki , Naoshi Sugiyama

We have considered the possibility of a slowly rotating wormhole surrounded by a cloud of charged particles. Due to slow rotation of the wormhole, the charged particles are dragged thereby producing an electromagnetic field. We have…

Astrophysics · Physics 2014-11-18 Mubasher Jamil

We present the results of lattice computations of collisions of two expanding bubbles of true vacuum in the Abelian Higgs model with a first-order phase transition. New time-dependent analytical solutions for the Abelian field strength and…

High Energy Physics - Phenomenology · Physics 2009-10-31 E. J. Copeland , P. M. Saffin , O. Tornkvist

We analyze the generation of helical magnetic fields during preheating in a model of low-scale electroweak (EW) hybrid inflation. We show how the inhomogeneities in the Higgs field, resulting from tachyonic preheating after inflation, seed…

High Energy Physics - Phenomenology · Physics 2008-12-18 Andres Diaz-Gil , Juan Garcia-Bellido , Margarita Garcia Perez , Antonio Gonzalez-Arroyo

In the broken-symmetry phase of the electroweak theory there is no unique definition of the electromagnetic field tensor in cases where the magnitude of the Higgs field differs from a constant value. The meaning of the electromagnetic field…

High Energy Physics - Phenomenology · Physics 2007-05-23 Ola Tornkvist

We study the magnetic fields produced in the early Universe during the electroweak symmetry breaking by considering random configurations of an inhomogeneous Higgs field. By exploiting the inherent randomness of the initial configurations…

High Energy Physics - Phenomenology · Physics 2026-04-28 Károly Seller , Günter Sigl

A first-order Electroweak Phase Transition (EWPT) could explain the observed baryon-antibaryon asymmetry and its dynamics could yield a detectable gravitational wave signature, while the underlying physics would be within the reach of…

High Energy Physics - Phenomenology · Physics 2021-10-20 José Eliel Camargo-Molina , Rikard Enberg , Johan Löfgren

We study the generation of intergalactic magnetic fields in two models for first-order phase transitions in the early Universe that have been studied previously in connection with the generation of gravitational waves (GWs): the Standard…

Cosmology and Nongalactic Astrophysics · Physics 2020-10-29 John Ellis , Malcolm Fairbairn , Marek Lewicki , Ville Vaskonen , Alastair Wickens

Spontaneous CP violation during the electroweak phase transition can induce a twisting of the magnetic field configuration of Standard Model dumbbells, resulting in sizable intergalactic magnetic fields and a small baryon asymmetry, in…

High Energy Physics - Phenomenology · Physics 2025-09-24 Valerie Domcke , Yohei Ema , Teerthal Patel

The singularities of the electromagnetic field are derived to include all the point-like multipoles representing an electric charge and current distribution. Firstly derived in the static case, the result is generalized to the dynamic one.…

Classical Physics · Physics 2015-05-14 C. Vrejoiu , R. Zus

The generation of primordial magnetic fields from cosmological phase transitions is discussed, paying particular attention to the electroweak transition and to the various definitions of the `average' field that have been put forward. It is…

Astrophysics · Physics 2016-08-25 Mark Hindmarsh , Allen Everett

A new geometrical perturbation scheme is developed in order to calculate the electromagnetic fields produced by charged sources in prescribed motion moving in a non-straight perfectly conducting beam pipe. The pipe is regarded as a…

Accelerator Physics · Physics 2015-05-13 Shin-itiro Goto , Robin W Tucker

The Abelian Born-Infeld classical non-linear electrodynamic has been used to investigate the electric and magnetostatic fields generated by a point-like electrical charge at rest in an inertial frame. The results show a rich internal…

High Energy Physics - Theory · Physics 2008-11-26 S. O. Vellozo , Jose A. Helayel-Neto , A. W. Smith , L. P. G. De Assis

In the SU(2)_L x U(1)_Y standard electroweak theory coupled with the Einstein gravity, new topological configurations naturally emerge, if the spatial section of the universe is globally a three-sphere (S^3) with a small radius. The SU(2)_L…

High Energy Physics - Phenomenology · Physics 2009-11-07 Yutaka Hosotani , Hiroki Emoto , Takahiro Kubota

In the minimal supersymmetric standard model (MSSM), a strongly first-order electroweak phase transition (EWPT) is only possible in a confined parameter region where one of the scalar top quarks is lighter than the top quark and the other…

High Energy Physics - Phenomenology · Physics 2010-04-13 S. W. Ham , Seong-A Shim , S. K. Oh