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We address the problem of string arbitrariness in the quantum field theory of Dirac magnetic monopoles. Different prescriptions are shown to yield different physical results. The constraints due to the discrete symmetries (C and P) are…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. Yu. Ignatiev , G. C. Joshi

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

We theoretically demonstrate that a pair of Dirac monopoles with opposite synthetic charges can be created within a single spin-1 Bose-Einstein condensate by steering the spin degrees of freedom by external magnetic fields. Although the net…

Quantum Gases · Physics 2019-02-27 Konstantin Tiurev , Pekko Kuopanportti , Mikko Möttönen

Magnetic monopoles --- particles that behave as isolated north or south magnetic poles --- have been the subject of speculation since the first detailed observations of magnetism several hundred years ago. Numerous theoretical…

Quantum Gases · Physics 2014-08-15 M. W. Ray , E. Ruokokoski , S. Kandel , M. Möttönen , D. S. Hall

Dirac's formulation of magnetic monopoles is shown to be equivalent to Maxwell theory coupled to 2-form gauge fields so that it has a local 1-form symmetry, with the 2-form gauge fields given in terms of the 2-form current densities…

High Energy Physics - Theory · Physics 2025-05-09 C M Hull

In the grand tapestry of Physics, the magnetic monopole is a holy grail. Therefore, numerous efforts are underway in search of this hypothetical particle at CMS, ATLAS and MoEDAL experiments of LHC by employing different production…

High Energy Physics - Phenomenology · Physics 2024-04-18 Ijaz Ahmed , Sidra Swalheen , Mansoor Ur Rehman , Rimsha Tariq

We experimentally observe the decay dynamics of deterministically created isolated monopoles in spin-1 Bose-Einstein condensates. As the condensate undergoes a change between magnetic phases, the isolated monopole gradually evolves into a…

Quantum Gases · Physics 2017-05-24 T. Ollikainen , K. Tiurev , A. Blinova , W. Lee , D. S. Hall , M. Möttönen

We present a model for the Dirac magnetic monopole, suitable for the strong coupling regime. The magnetic monopole is static, has charge g and mass M, occupying a volume of radius R ~ O (g^2/M). It is shown that inside each n-monopole there…

High Energy Physics - Theory · Physics 2007-05-23 P. Pitanga

This paper studies the electroweak production of all possible four-fermion states in $e^+e^-$ collisions with non-standard triple gauge boson couplings. All $CP$ conserving couplings are considered. It is an extension of the methods and…

High Energy Physics - Phenomenology · Physics 2008-11-26 F. A. Berends , A. I. van Sighem

The present theory is closely related to Dirac's equation of the electron, but not to his magnetic monopole theory, except for his relation between electric and magnetic charge. The theory is based on the fact, that the massless Dirac…

Quantum Physics · Physics 2008-11-26 Georges Lochak

If a heavy Dirac monopole exists, the light-to-light scattering below the monopole production threshold is enhanced due to strong coupling of monopoles to photons. At the next Linear Collider with electron beam energy 250 GeV this photon…

High Energy Physics - Phenomenology · Physics 2016-08-25 I. F. Ginzburg , A. Schiller

The Dirac monopole string is specified for anti de Sitter cosmological model. Dirac equation for spin 1/2 particle in presence of this monopole has been examined on the background of anti de Sitter space-time in static coordinates. Instead…

Mathematical Physics · Physics 2011-10-11 E. M. Ovsiyuk , O. V. Veko

Magnetic monopoles have attracted the attention of physicists since the founding of the electromagnetic theory. Their search has been a constant endeavor which was intensified when Dirac established the relation between the existence of…

High Energy Physics - Phenomenology · Physics 2009-08-05 Luis N. Epele , Huner Fanchiotti , Carlos A. Garcia Canal , Vicente Vento

We show theoretically that a monopole defect, analogous to the Dirac magnetic monopole, may exist as the ground state of a dilute spin-1 Bose-Einstein condensate. The ground-state monopole is not attached to a single semi-infinite Dirac…

Quantum Gases · Physics 2015-05-30 Emmi Ruokokoski , Ville Pietilä , Mikko Möttönen

We discuss the algebra and the interpretation of the anomalous Zeeman effect and the spin-orbit coupling within the Dirac theory. Whereas the algebra for the anomalous Zeeman effect is impeccable and therefore in excellent agreement with…

General Physics · Physics 2016-04-19 Gerrit Coddens

The dynamical (super)symmetries for various monopole systems are reviewed. For a Dirac monopole, no smooth Runge-Lenz vector can exist; there is, however, a spectrum-generating conformal $o(2,1)$ dynamical symmetry that extends into…

High Energy Physics - Theory · Physics 2009-11-11 P. A. Horvathy

Dirac-like monopoles are studied in three-dimensional Abelian Maxwell and Maxwell-Chern-Simons models. Their scalar nature is highlighted and discussed through a dimensional reduction of four-dimensional electrodynamics with electric and…

High Energy Physics - Theory · Physics 2009-11-07 E. M. C. Abreu , J. A. Helayel-Neto , M. Hott , W. A. Moura-Melo

In this paper we correct previous work on magnetic charge plus a photon mass. We show that contrary to previous claims this system has a very simple, closed form solution which is the Dirac string potential multiplied by a exponential…

High Energy Physics - Theory · Physics 2022-09-27 Michael Dunia , Tim Evans , Douglas Singleton

We study numerically the detailed structure and decay dynamics of isolated monopoles in conditions similar to those of their recent experimental discovery. We find that the core of a monopole in the polar phase of a spin-1 Bose-Einstein…

Quantum Gases · Physics 2016-03-30 K. Tiurev , E. Ruokokoski , H. Mäkelä , D. S. Hall , M. Möttönen

Artificial monopoles have been engineered in various systems, yet there has been no systematic study of the singular vector potentials associated with the monopole field. We show that the Dirac string, the line singularity of the vector…

Quantum Gases · Physics 2024-04-10 Gui-Sheng Xu , Mudit Jain , Xiang-Fa Zhou , Guang-Can Guo , Mustafa A. Amin , Han Pu , Zheng-Wei Zhou
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