Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866913007509962752 |
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| author | Murai, Kai Ogawa, Tatsuya Takahashi, Fuminobu |
| author_facet | Murai, Kai Ogawa, Tatsuya Takahashi, Fuminobu |
| contents | We study oscillon/I-ball solutions in a real scalar version of the Friedberg-Lee-Sirlin (FLS) model. Using the two-timing analysis, we derive the conditions for oscillon solutions and explore multi-field oscillon configurations. In these configurations, the two fields form co-located oscillons that oscillate with frequencies set by their respective masses. These multi-field oscillons can be viewed as a bound state of two oscillons due to attractive interactions between the fields. We confirm these analytical predictions through numerical lattice calculations. This work extends the standard picture of single-field oscillons and may be relevant for cosmological scenarios involving multiple interacting real scalar fields. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2604_04494 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model Murai, Kai Ogawa, Tatsuya Takahashi, Fuminobu High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory We study oscillon/I-ball solutions in a real scalar version of the Friedberg-Lee-Sirlin (FLS) model. Using the two-timing analysis, we derive the conditions for oscillon solutions and explore multi-field oscillon configurations. In these configurations, the two fields form co-located oscillons that oscillate with frequencies set by their respective masses. These multi-field oscillons can be viewed as a bound state of two oscillons due to attractive interactions between the fields. We confirm these analytical predictions through numerical lattice calculations. This work extends the standard picture of single-field oscillons and may be relevant for cosmological scenarios involving multiple interacting real scalar fields. |
| title | Multi-field oscillons/I-balls in the Friedberg-Lee-Sirlin model |
| topic | High Energy Physics - Phenomenology Cosmology and Nongalactic Astrophysics High Energy Physics - Theory |
| url | https://arxiv.org/abs/2604.04494 |