Perturbations of Q-balls: from spectral structure to radiation pressure

Ciurla, Dominik; Dorey, Patrick; Romańczukiewicz, Tomasz; Shnir, Yakov

Abstract

We investigate Q-balls in a 1+1 dimensional complex scalar field theory. We find that the relaxation of a squashed Q-ball is dominated by the decay of a normal mode through nonlinear coupling to scattering modes and a long-lasting quasi-normal mode. We also study how these Q-balls behave when exposed to scalar radiation, finding that for certain conditions they can experience negative radiation pressure.

Citation

Ciurla, D., Dorey, P., Romańczukiewicz, T., & Shnir, Y. (2024). Perturbations of Q-balls: from spectral structure to radiation pressure. Journal of High Energy Physics, 2024(7), Article 196. https://doi.org/10.1007/jhep07%282024%29196

• Journal Article Type: Article
• Acceptance Date: Jun 24, 2024
• Online Publication Date: Jul 22, 2024
• Publication Date: 2024-07
• Deposit Date: Aug 6, 2024
• Publicly Available Date: Aug 6, 2024
• Journal: Journal of High Energy Physics
• Print ISSN: 1126-6708
• Electronic ISSN: 1029-8479
• Publisher: Scuola Internazionale Superiore di Studi Avanzati (SISSA)
• Peer Reviewed: Peer Reviewed
• Volume: 2024
• Issue: 7
• Article Number: 196
• DOI: https://doi.org/10.1007/jhep07%282024%29196
• Keywords: Field Theories in Lower Dimensions, Solitons Monopoles and Instantons
• Public URL: https://durham-repository.worktribe.com/output/2614743