Hall Conductivity in a Spin-Triplet Superconductor

We calculate the Hall conductivity for a spin-triplet superconductor, using a generalized pairing symmetry dependent on an arbitrary phase, $\text{vphi}$. A promising candidate for such an order parameter is Sr${}_2$RuO${}_4$, whose superconducting order parameter symmetry is still subject to investigation. The value of this phase can be determined through Kerr rotation and DC Hall conductivity measurements. Our calculations impose significant constraints on $\text{vphi}$.