Fermions localized on U(1) gauged Q-balls
Abstract The axially symmetric U (1) gauged self-interacting Q-balls are shown to support normalizable fermionic bound states, minimally coupled to the electromagnetic field of the Q-ball. It is shown that the effects of the backreaction of the fermionic mode are very small in the range of the system parameters studied. We explore the domain of existence of the solutions and address some of their physical properties. Among other properties, we observe that, for the bound mode, the eigenvalue of the Dirac operator remains positive, there is no zero mode in the spectrum, as expected in a theory with finite bare fermionic mass in the absence of the Yukawa coupling.
Authors
- Yakov Shnir (ORCID: https://orcid.org/0000-0002-9159-2675)
- Vladimir Folomeev (ORCID: https://orcid.org/0000-0003-4160-5850)
- Vladimir Dzhunushaliev (ORCID: https://orcid.org/0000-0001-9479-5606)
Institutions
- Tomsk State University of Control Systems and Radio-Electronics (RU)
- National Academy of Sciences (US)
- Universidade de São Paulo (BR)
- Al-Farabi Kazakh National University (KZ)
- Dubna State University (RU)
- National Nuclear Center of the Republic of Kazakhstan (KZ)
Publication Details
- Journal
- The European Physical Journal C
- Published
- 2025-07-25
- DOI
- https://doi.org/10.1140/epjc/s10052-025-14540-z
- Primary Topic
- Cold Atom Physics and Bose-Einstein Condensates
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Fundação de Amparo à Pesquisa do Estado de São Paulo
- Ministry of Education and Science of the Republic of Kazakhstan