Data processing for the sandwiched Rényi divergence: a condition for equality
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DOI: 10.1007/s11005-016-0896-9
Abstract: The $$\alpha $$α-sandwiched Rényi divergence satisfies the data processing inequality, i.e. monotonicity under quantum operations, for $$\alpha \ge 1/2$$α≥1/2. In this article, we derive a necessary and sufficient algebraic condition for equality in the data processing… read more here.
Keywords: data processing; inequality; condition equality; equality ... See more keywords