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Bibliographic Details
Main Authors: Murai, Kai, Ogawa, Tatsuya, Takahashi, Fuminobu
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2604.04494
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Table of 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.