Fixed-ray escort representations of sandwiched and $\alpha$--$z$ Rényi divergences on von Neumann algebras

Tanay Kibe, Pratik Roy

We represent sandwiched and $\alpha$-$z$ Rényi divergences as averages of ordinary relative entropy. The $\alpha$-$z$ Rényi divergence is shown to be an integral over the relative entropy of…