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Dark energy from non-degenerate Higgs-vacuum

High Energy Physics - Phenomenology 2024-07-26 v1 General Relativity and Quantum Cosmology

Abstract

Scalar fields are favorite among the possible candidates for the dark energy. Most frequently discussed are those with degenerate minima at ±ϕmin\pm \phi_{min}. In this paper, a slightly modified two-Higgs doublet model is taken to contain the Higgs field(s) as the dark energy candidate(s). The model considered has two non-degenerate minima at ϕ±\phi_{\pm}, instead of one degenerate minimum at ±ϕmin\pm\phi_{min}. The component fields of one SU(2) doublet (ϕ1\phi_1) act as the standard model (SM) Higgs, while the component fields of the second doublet (ϕ2\phi_2) are taken to be the dark energy candidates (lying in the true vacuum). It is found that one \emph{can} arrange for late time acceleration (dark energy) by using an SU(2) Higgs doublet, whose vacuum expectation value is zero, in the quintessential regime.

Keywords

Cite

@article{arxiv.2407.09840,
  title  = {Dark energy from non-degenerate Higgs-vacuum},
  author = {Muhammad Usman and Asghar Qadir},
  journal= {arXiv preprint arXiv:2407.09840},
  year   = {2024}
}

Comments

11 Pages. arXiv admin note: substantial text overlap with arXiv:1506.07099