https://doi.org/10.1140/epjc/s10052-023-11710-9
Regular Article - Theoretical Physics
Revisiting the Friedberg–Lee–Sirlin soliton model
Department of Physics, University of Virginia, 22904-4714, Charlottesville, VA, USA
Received:
27
March
2023
Accepted:
10
June
2023
Published online:
22
June
2023
Non-topological solitons are localized classical field configurations stabilized by a Noether charge. Friedberg, Lee, and Sirlin proposed a simple renormalizable soliton model in their seminal 1976 paper, consisting of a complex scalar field that carries the Noether charge and a real-scalar mediator. We revisit this model, point out commonalities and differences with Q-ball solitons, and provide analytic approximations to the underlying differential equations.
© The Author(s) 2023
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