Year: 2025
Type: article
Abstract: A bstract We show that spinor systems with scalar self-interaction, such as the Dirac-Klein-Gordon system with Yukawa coupling or the Soler model, generically have bi-frequency solitary wave solutions. We develop the approach to stability properties of such waves and use the radial reduction to show that indeed the (linear) stability is available for a wide range of parameters. We show that only bi-frequency modes can be dynamically stable and suggest that stable bi-frequency modes can serve as storages of the Dark Matter. The approach is based on linear stability results of one-frequency solitary waves in (3+1)D Soler model, which we obtain as a by-product.
Source: Journal of High Energy Physics
Authors: Andrew Comech, Niranjana Kulkarni, Nabile Boussaïd, Jesús Cuevas-Maraver
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W4406230959