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arXiv · 2004.13083

Magnetic monopole as a spacetime defect

Suvikranth Gera·Sandipan Sengupta
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Abstract

We propose that the only possible realization of a magnetic pole is emergent, it being an artefact of a torsion defect in a curved spacetime. This special phase is characterized by a class of degenerate metric spacetime solutions of first order gravity in vacuum. The (apparent) magnetic charge is shown to have a topological origin, given by a lower dimensional counterpart of the Nieh-Yan index. At the invertible metric phase at a distance, this topological charge gets reflected as the (magnetic) Reissner-Nordstrom charge to an asymptotic observer, even though the defect itself remains hidden.

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Suvikranth Gera, Sandipan Sengupta. 2020-04-27. Magnetic monopole as a spacetime defect. https://doi.org/10.1103/physrevd.104.044038

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