Parker Bound and Monopole Pair Production from Primordial Magnetic Fields
arXiv:2207.08246 · doi:10.1103/PhysRevD.106.063016
Abstract
We present new bounds on the cosmic abundance of magnetic monopoles based on the survival of primordial magnetic fields during the reheating and radiation-dominated epochs. The new bounds can be stronger than the conventional Parker bound from galactic magnetic fields, as well as bounds from direct searches. We also apply our bounds to monopoles produced by the primordial magnetic fields themselves through the Schwinger effect, and derive additional conditions for the survival of the primordial fields.
arXiv comment27 pages, 4 figures; typos corrected, references added
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- Monopole acceleration in intergalactic magnetic fields
- Gravitational capture of magnetic monopoles by primordial black holes in the early universe
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- The next frontiers for magnetic monopole searches
- Seminal Electromagnetic fields from preinflation
- The scaling of primordial gauge fields
- Recasting Experimental Constraints on Relativistic Magnetic Monopoles
- Noninflationary solution to the monopole problem