Strong NP-hardness of the quantum separability problem
Quantum Information & Computation
Multiplicativity of accessible fidelity and quantumness for sets of quantum states
Quantum Information & Computation
Comments on multiplicativity of maximalp-norms whenp=2
Quantum Information & Computation
Notes on super-operator norms induced by schatten norms
Quantum Information & Computation
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It shown that when one of the components of a product channel is entanglement breaking, the output state with maximal p-norm is always a product state. This result complements Shor's theorem that both minimal entropy and Holevo capacity are additive for entanglement breaking channels. It is also shown how Shor's results can be recovered from the p-norm results by considering their behavior for p close to one.