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quant-ph2025
The complexity of perfect quantum state classification
Nathaniel Johnston, Benjamin Lovitz, Vincent Russo +1
The problem of quantum state classification asks how accurately one can identify an unknown quantum state that is promised to be drawn from a known set of pure states. In this work…
quant-ph2025
Constructive counterexamples to the additivity of minimum output Rényi entropy of quantum channels for all
Harm Derksen, Benjamin Lovitz
We present explicit quantum channels with strictly sub-additive minimum output Rényi entropy for all , improving upon prior constructions which handled . Our example is p…