The density of imaginary multiplicative chaos is positive

Consider a log-correlated Gaussian field $\mathrm{\Gamma }$ and its associated imaginary multiplicative chaos $:e^{i\beta \mathrm{\Gamma }}:$ where $\beta$ is a real parameter. In [AJJ22], we showed that for any nonzero test function $f$, the law of $\int f:e^{i\beta \mathrm{\Gamma }}:$ possesses a smooth density with respect to Lebesgue measure on $\mathbb{C}$. In this note, we show that this density is strictly positive everywhere on $\mathbb{C}$. Our simple and direct strategy could be useful for studying other functionals on Gaussian spaces.