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In this article, we analyze a magnetic monopole in topological insulators. The monopole obtain a fractional electric charge because of the Witten effect. We consider this system with a microscopic view by adding the Wilson term to the…

High Energy Physics - Lattice · Physics 2024-01-12 Shoto Aoki , Hidenori Fukaya , Naoto Kan , Mikito Koshino , Yoshiyuki Matsuki

We study dilaton-electrodynamics in flat spacetime and exhibit a set of global cosmic string like solutions in which the magnetic flux is confined. These solutions continue to exist for a small enough dilaton mass but cease to do so above a…

High Energy Physics - Theory · Physics 2010-04-06 G. W. Gibbons , C. G. Wells

Electrical charges are conserved. The same would be expected to hold for magnetic charges, yet magnetic monopoles have never been observed. It is therefore surprising that the laws of non-equilibrium thermodynamics, combined with Maxwell's…

Using the Dirac string formalism for monopoles we expose an extensive analogy between magnetic monopole excitations in the dumbbell model of spin ice and those of the vacuum. In both cases the Dirac strings are defined in the space-time of…

Strongly Correlated Electrons · Physics 2025-05-22 A. Huster Zapke , P. C. W. Holdsworth

We introduce the magnetic angular momentum as a consequence of the structure of the sO(3) Lie algebra defined by the Feynman brackets. The Poincare momentum and Dirac magnetic monopole appears as a direct result of this framework.

Classical Physics · Physics 2009-11-06 A. Berard , y. Grandati , H. Mohrbach

Nonradiating current configurations attract attention of physicists for many years as possible models of stable atoms in the field theories. One intriguing example of such a nonradiating source is known as anapole (which means without poles…

In this note we generalized the Dirac non-linear electrodynamics, by introducing two potentials (namely, the vector potential A and the pseudo-vector potential gamma^5 B of the electromagnetic theory with charges and magnetic monopoles) and…

Quantum Physics · Physics 2015-06-26 W. A. Rodrigues , Jayme Vaz , Erasmo Recami

We construct the multi-charge generalizations for the electroweak magnetic monopole solution of Cho and Maison within a wide range of values of the magnetic charge. We use the same ansatz for the axially symmetric fields as the one…

High Energy Physics - Theory · Physics 2023-03-01 Romain Gervalle , Mikhail S. Volkov

We start with a summary of the theory of the gravitational polarization of the quantum vacuum, which makes it possible to consider the quantum vacuum as a source of gravity in the Universe. Next, because virtual gravitational dipoles are…

General Physics · Physics 2023-11-07 Dragan Hajdukovic

The origin of large-scale magnetic fields, detected in some low-mass (dwarf and irregular) galaxies via polarised synchrotron emission and Faraday rotation, remained unexplained for a long time. We suggest that mean-field dynamo can be…

Astrophysics of Galaxies · Physics 2019-10-16 Prasanta Bera , Anvar Shukurov , Kandaswamy Subramanian

In a recent study on monopole production [Eur. Phys. J. C (2018) 78: 966], Baines et al added the potential of a magnetic dipole to the Wu-Yang potentials for the Dirac monopole and claimed that this modified Wu-Yang configuration does not…

High Energy Physics - Phenomenology · Physics 2019-03-01 Ricardo Heras

We discuss the Abelian and non-Abelian monopoles which could exist in condensed matters. We show how the Dirac monopole can be regularized by the charge screening, and argue that the Dirac monopole of mass of hundred meVs could exist in…

High Energy Physics - Theory · Physics 2020-10-19 Yunkyu Bang , Y. M. Cho , Tieyan Si , Li-Ping Zou

Recently, we have discussed the coexistence of a finite energy one-half monopole and a 't Hooft-Polyakov monopole of opposite magnetic charges. In this paper, we would like to introduce electric charge into this new monopoles configuration,…

High Energy Physics - Theory · Physics 2015-06-18 Rosy Teh , Ban-Loong Ng , Khai-Ming Wong

After having obtained previously an extended first approximation of Maxwell's equations in Fock's nonlinear relativity, we propose here the corresponding exact form. In order to achieve this goal, we were inspired mainly by the special…

General Relativity and Quantum Cosmology · Physics 2019-02-26 Naimi Takka , Ahmed Bouda

Existence of the magnetic monopole is compatible with the fundamental laws of nature, however, this illusive particle has yet to be detected experimentally. In this work, we show that an electric charge near the topological surface state…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Xiao-Liang Qi , Rundong Li , Jiadong Zang , Shou-Cheng Zhang

Most of the visible matter in the Universe is in a plasma state, or more specifically is composed of ionized or partially ionized gas permeated by magnetic fields. Thanks to recent advances on the theory and detection of cosmic magnetic…

Astrophysics · Physics 2009-11-11 E. M. de Gouveia Dal Pino

Emergent quasiparticles that arise from the fractionalization of the microscopic degrees of freedom have been one of the central themes in modern condensed matter physics. The notion of magnetic monopoles, freely moving quasiparticles…

Strongly Correlated Electrons · Physics 2016-06-10 Gia-Wei Chern , Paula Mellado

Theory of pointlike magnetic monopole with an arbitrary magnetic charge is considered. It is shown that a proper description requires making use of nonunitary representations of the rotation group and the nonassociative generalization of…

High Energy Physics - Theory · Physics 2012-07-05 Alexander I Nesterov , F. Aceves de la Cruz

In this lecture notes will be discussed the status of the searches (i) for classical Dirac Magnetic Monopoles (MMs) at accelerators, (ii) for GUT superheavy MMs in the penetrating cosmic radiation and (iii) for Intermediate Mass MMs in the…

High Energy Physics - Experiment · Physics 2007-05-23 G. Giacomelli , L. Patrizii

We introduce the concept of a photonic Dirac monopole, appropriate for photonic crystals, metamaterials and 2D materials, by utilizing the Dirac-Maxwell correspondence. We start by exploring vacuum where the reciprocal momentum space of…

Optics · Physics 2018-12-12 Todd Van Mechelen , Zubin Jacob
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