English

Global in time self-interacting Dirac fields in the de Sitter space

Mathematical Physics 2021-11-16 v2 Analysis of PDEs math.MP Quantum Physics

Abstract

In this paper the semilinear equation of the spin-12\frac{1}{2} fields in the de Sitter space is investigated. We prove the existence of the global in time small data solution in the expanding de Sitter universe. Then, under the Lochak-Majorana condition, we prove the existence of the global in time solution with large data. The sufficient conditions for the solutions to blow up in finite time are given for large data in the expanding and contracting de Sitter spacetimes. The influence of the Hubble constant on the lifespan is estimated.

Keywords

Cite

@article{arxiv.2109.12656,
  title  = {Global in time self-interacting Dirac fields in the de Sitter space},
  author = {Karen Yagdjian},
  journal= {arXiv preprint arXiv:2109.12656},
  year   = {2021}
}
R2 v1 2026-06-24T06:20:48.049Z