Introduces a quantum empirical operator satisfying combinatorial and large-deviation bounds to establish a quantum method of types and prove universal achievability in composite quantum hypothesis testing.
LetV n be an exact unitaryn-design with|V n| ≤9d 8n4d2 , and define ˆΓn ={(λ, U) :λ∈Λ n,d, U∈ V n}
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A Quantum Method of Types
Introduces a quantum empirical operator satisfying combinatorial and large-deviation bounds to establish a quantum method of types and prove universal achievability in composite quantum hypothesis testing.