Revisiting the Friedberg-Lee-Sirlin soliton model

Abstract

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.

9 pages, matches EPJC version

References in corpus (2)

• Some stationary properties of a $Q$-ball in arbitrary space dimensions
• Q-balls in polynomial potentials

Cited by in corpus (4)

• Gauged Q-ball dark matter through a cosmological first-order phase transition
• Non-topological solitons and quasi-solitons
• Q-Balls in the presence of attractive force
• The Tunneling Potential Approach to Q-Balls