The reverse sandwiched Renyi divergence for alpha in (0,1) exactly equals the optimal Hoeffding exponent for discriminating a thermal equilibrium state from a probe with unknown dephasing in the energy basis.
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Operational interpretation of the reverse sandwiched Renyi divergences in composite quantum hypothesis testing
The reverse sandwiched Renyi divergence for alpha in (0,1) exactly equals the optimal Hoeffding exponent for discriminating a thermal equilibrium state from a probe with unknown dephasing in the energy basis.