Does $SU(N)$ have a pseudo-real representation? If so, how can we construct them explicitly? I am looking specifically for pseudo-real representation instead of real representation (The adjoint representation of $SU(N)$ is real).
If $g\in SU(N)$ and $R(g)$ is a pseudo-real representation, then there exists a matrix $C$ such that
$$\bar{R}(g)=CR(g)C^{-1},$$
where $\bar{R}(g)$ means complex conjugation.
I would appreciate any comment or reference. Thank you!