Accelerated expansion of the Universe and the Higgs true vacuum

TL;DR

This paper proposes a two-Higgs doublet model with non-degenerate vacua that explains the Universe's accelerated expansion through one Higgs doublet in its true minimum, offering a novel dark energy candidate.

Contribution

It introduces the inert uplifted double well two-Higgs doublet model (UDW-2HDM) as a new framework for dark energy and cosmic acceleration.

Findings

One Higgs doublet can drive accelerated expansion when in its true vacuum.

The model links Higgs vacuum structure to cosmological acceleration.

It provides a particle physics-based explanation for dark energy.

Abstract

Scalar fields which are favorite among the possible candidates for the dark energy usually have degenerate minima at $\pm \phi_{min}$. In the presented work, we discuss a two Higgs doublet model with the non-degenerate vacuum named inert uplifted double well type two-Higgs doublet model (UDW-2HDM) for the dark energy. It is shown that when the both Higgs doublets lie in their respective true minima then one Higgs doublet can cause the current accelerated expansion of the Universe.