Monopole-Antimonopole Pair Production in Primordial Magnetic Fields
arXiv:2105.12776 · doi:10.1103/PhysRevD.104.043501
Abstract
We show that monopoles can be pair produced by cosmological magnetic fields in the early universe. The pair production gives rise to relic monopoles, and at the same time induces a self-screening of the magnetic fields. By studying these effects we derive limits on the monopole mass, and also on the initial amplitude of primordial magnetic fields. Monopoles of GUT scale mass can even be produced if primordial magnetic fields exist at sufficiently high redshifts.
arXiv comment26 pages, 3 figures, v2: minor clarification, v3: published in PRD
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