Model for the propagation of fermions in a Bose-Einstein condensate
High Energy Physics - Phenomenology
2023-06-21 v2 High Energy Astrophysical Phenomena
Abstract
We consider the dispersion relations of fermions that propagate in the background of a scalar Bose-Einstein condensate. Some illustrative examples are discussed using simple Yukawa-type coupling models between the fermions and the scalar fields. The dispersion relations are determined explicitly in those cases, to the lowest order. The method also allows to determine the corrections to the dispersion relations due to the interactions with the excitations of the Bose-Einstein condensate. Possible applications of the results to the case of neutrinos are indicated.
Keywords
Cite
@article{arxiv.2302.14285,
title = {Model for the propagation of fermions in a Bose-Einstein condensate},
author = {José F. Nieves and Sarira Sahu},
journal= {arXiv preprint arXiv:2302.14285},
year = {2023}
}
Comments
20 pages, one figure, To be published in Phys. Rev. D