Higgs-like mechanism for spontaneous spacetime symmetry breaking

TL;DR

This paper proposes a novel Higgs-like mechanism for spontaneous spacetime symmetry breaking in a chiral SU(2) model, leading to fermion mass generation and emergent photons, potentially reproducing QED without the fermion-boson puzzle.

Contribution

It introduces a new Higgs mechanism involving spacetime symmetry breaking that results in fermion mass acquisition and photon emergence within a chiral SU(2) framework.

Findings

Vector mesons absorb gauge and Lorentz symmetry violations

Fermions acquire right-handed states and masses

Emergent photons resemble QED behavior

Abstract

The study of spontaneous breakdown of spacetime symmetries leads to the discovery of another type of Higgs mechanism operating in a chiral SU(2) model. Some of the Nambu-Goldstone vector mesons emergent from simultaneous violations of gauge and Lorentz symmetries are, in this case, absorbed by a left-handed doublet and endow one of the fermions with a right-handed state, while another part becomes emergent as photons. Accordingly, this mechanism allows a chiral fermion to acquire a mass, and it may enable the emergent theory to reproduce the electromagnetism equivalent to the QED sector in the standard theory. It is also mentioned that the "fermion-boson puzzle" known in the presence of a 't Hooft--Polyakov monopole does not exist in our theory.