Quintessence scale-factor solution
= Quintessence scale-factor solution
For $w=-2/3$, zero cosmological constant, and negative curvature, $a(t)=\sqrt\beta\,t+\gamma t^2/4$ with density and curvature parameters $\gamma,\beta>0$.
= Quintessence scale-factor solution
For $w=-2/3$, zero cosmological constant, and negative curvature, $a(t)=\sqrt\beta\,t+\gamma t^2/4$ with density and curvature parameters $\gamma,\beta>0$.