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Aug 8 – 12, 2022
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Q-monopole-ball: a topological and nontopological soliton

Aug 8, 2022, 3:00 PM
20m
Parallel Talk Dark Matter Dark Matter

Speaker

Dr Nicholas Orlofsky (Carleton University)

Description

Magnetic monopoles and Q-balls are examples of topological and nontopological solitons, respectively. A new soliton state with both topological and nontopological charges is shown to also exist, given a monopole sector with a portal coupling to an additional scalar field S with a global U(1) symmetry. This new state, the Q-monopole-ball, is more stable than an isolated Q-ball made of only S particles, and it could be stable against fissioning into monopoles and free S particles. Stable Q-monopole-balls can contain large magnetic charges, providing a novel nongravitational mechanism for binding like-charged monopoles together. They could be produced from a phase transition in the early universe and account for all dark matter.

Author

Dr Nicholas Orlofsky (Carleton University)

Co-authors

Yang Bai (University of Wisconsin, Madison) Sida Lu (Tel Aviv University)

Presentation materials