Shape of Dark Energy: Constraining Its Evolution with a General Parametrization

Dong Ha Lee, Weiqiang Yang, Eleonora Di Valentino +2

We consider a general dark energy (DE) model parametrized by its equation-of-state (EoS), featuring three free parameters: $w_0$ (the present-day value of the DE EoS), $w_{\beta }$ (quant…