Work

Quasi- Q -balls in massless scalar fields

Year: 2025

Type: article

Abstract: We study long-term evolution of radiating quasi-Q-balls in 1+1 dimensional models without mass threshold. Two different models are considered, the model with a rational modification of the usual Q-ball sextic potential and the model of a Q-ball in a box with outgoing boundary conditions. We find that the outgoing boundary conditions modify the angular frequency of quasi-Q-balls which becomes complex-valued. The quasi-Q-balls decay initially very similarly but, in the last stage, quasi-Q-balls in a box become linear resonances, whereas in the rationally modified model, they decay according to some power law.

Source: Physical review. E

DOI: 10.1103/wzbm-5kcn

Authors: Tomasz Romańczukiewicz, Yakov Shnir

Institutions: Jagiellonian University, Universidade de São Paulo, Instituto de Física de São Carlos

Language: English

Topic: Nonlinear Waves and Solitons

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Fundação de Amparo à Pesquisa do Estado de São Paulo, Uniwersytet Jagielloński w Krakowie

Award: Gravitating U(1) gauged Skyrmions and hairy black holes