Addressing the High-$f$ Problem in Pseudo-Nambu-Goldstone Boson Dark Energy Models with Dark Matter - Dark Energy Interaction

Upala Mukhopadhyay, Avik Paul, Debasish Majumdar

We consider a dark energy scenario driven by a scalar field $\varphi$ with a pseudo Nambu Goldstone boson (pNGB) type potential $V(\varphi )={\mu }^4\left(1+\cos (\varphi /f)\right)$. The pNGB orig…