丁香园AV

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Synopsis

The search for cosmological magnetic fields has provided tantalizing hints that the universe was magnetized even at its very early stages, suggesting a particle physics origin for magnetic fields. Concurrently, the standard electroweak model of particle physics is known to contain confined magnetic monopoles that can potentially source the magnetic fields. I will describe some of the observational results together with our current understanding of electroweak magnetic monopoles, and the need for additional charge-parity (CP) violation in particle physics to explain observations.