<i>α</i>-<i>z</i>-Rényi relative entropies
<i>α</i>-<i>z</i>-Rényi relative entropies
We consider a two-parameter family of Rényi relative entropies Dα,z(ρ ∥ σ) that are quantum generalisations of the classical Rényi divergence Dα(p ∥ q). This family includes many known relative entropies (or divergences) such as the quantum relative entropy, the recently defined quantum Rényi divergences, as well as the quantum …