Dirac-Schwinger quantization for emergent magnetic monopoles?

In Refs. [1–4] Dirac and Schwinger showed the existence of a magnetic monopole required a charge quantization condition which we write following Dirac as eg4πħ=n2,n=0,±1,±2,…. Here, g is the magnetic monopole charge and e is the electric charge of the positron. Recently, in Refs. [5,6], it has been...

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Main Authors: A. Farhan, M. Saccone, B.F.L. Ward
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Physics Letters B
Online Access:http://www.sciencedirect.com/science/article/pii/S0370269325002576
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author A. Farhan
M. Saccone
B.F.L. Ward
author_facet A. Farhan
M. Saccone
B.F.L. Ward
author_sort A. Farhan
collection DOAJ
description In Refs. [1–4] Dirac and Schwinger showed the existence of a magnetic monopole required a charge quantization condition which we write following Dirac as eg4πħ=n2,n=0,±1,±2,…. Here, g is the magnetic monopole charge and e is the electric charge of the positron. Recently, in Refs. [5,6], it has been shown experimentally that frustrated spin-ice systems exhibit ‘emergent’ magnetic monopoles. We show that, within the experimental errors, the respective magnetic charges obey the Dirac-Schwinger quantization condition. Possible implications are discussed.
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spelling doaj-art-a9e4be8b282b42eeb735672b6dff29452025-08-20T02:16:18ZengElsevierPhysics Letters B0370-26932025-06-0186513949610.1016/j.physletb.2025.139496Dirac-Schwinger quantization for emergent magnetic monopoles?A. Farhan0M. Saccone1B.F.L. Ward2Department of Physics and Astronomy, Baylor University, Waco, TX, USACroputation, Santa Fe, NM, USADepartment of Physics and Astronomy, Baylor University, Waco, TX, USA; Corresponding author.In Refs. [1–4] Dirac and Schwinger showed the existence of a magnetic monopole required a charge quantization condition which we write following Dirac as eg4πħ=n2,n=0,±1,±2,…. Here, g is the magnetic monopole charge and e is the electric charge of the positron. Recently, in Refs. [5,6], it has been shown experimentally that frustrated spin-ice systems exhibit ‘emergent’ magnetic monopoles. We show that, within the experimental errors, the respective magnetic charges obey the Dirac-Schwinger quantization condition. Possible implications are discussed.http://www.sciencedirect.com/science/article/pii/S0370269325002576
spellingShingle A. Farhan
M. Saccone
B.F.L. Ward
Dirac-Schwinger quantization for emergent magnetic monopoles?
Physics Letters B
title Dirac-Schwinger quantization for emergent magnetic monopoles?
title_full Dirac-Schwinger quantization for emergent magnetic monopoles?
title_fullStr Dirac-Schwinger quantization for emergent magnetic monopoles?
title_full_unstemmed Dirac-Schwinger quantization for emergent magnetic monopoles?
title_short Dirac-Schwinger quantization for emergent magnetic monopoles?
title_sort dirac schwinger quantization for emergent magnetic monopoles
url http://www.sciencedirect.com/science/article/pii/S0370269325002576
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AT msaccone diracschwingerquantizationforemergentmagneticmonopoles
AT bflward diracschwingerquantizationforemergentmagneticmonopoles