Potential slow-roll parameter
= Potential slow-roll parameter
The potential slow-roll parameter is
$$
\epsilon_V=\frac{M_{\rm Pl}^2}{2}
\left(\frac{V'}V\right)^2.
$$
Under the slow-roll equations, $\dot\phi^2/(2V)\simeq\epsilon_V/3$.
= Potential slow-roll parameter
The potential slow-roll parameter is
$$
\epsilon_V=\frac{M_{\rm Pl}^2}{2}
\left(\frac{V'}V\right)^2.
$$
Under the slow-roll equations, $\dot\phi^2/(2V)\simeq\epsilon_V/3$.