• Corpus ID: 245986469

Test-measured R\'enyi divergences

@inproceedings{Mosonyi2022TestmeasuredRD,
  title={Test-measured R\'enyi divergences},
  author={Mil{\'a}n Mosonyi and Fumio Hiai},
  year={2022}
}
One possibility of defining a quantum Rényi α -divergence of two quantum states is to optimize the classical Rényi α -divergence of their post-measurement probability distributions over all possible measurements (measured Rényi divergence), and maybe regularize these quantities over multiple copies of the two states (regularized measured Rényi α -divergence). A key observation behind the theorem for the strong converse exponent of asymptotic binary quantum state discrimination is that the… 

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