Bounds on the Distance Between a Unital Quantum Channel and the Convex Hull of Unitary Channels

DOI10.1109/TIT.2016.2641447zbMath1364.81072MaRDI QIDQ2989659

Quanhua Xu, Nengkun Yu, Runyao Duan

Publication date: 8 June 2017

Published in: IEEE Transactions on Information Theory (Search for Journal in Brave)

Mathematics Subject Classification ID

Measures of information, entropy (94A17) Channel models (including quantum) in information and communication theory (94A40) Quantum information, communication, networks (quantum-theoretic aspects) (81P45)

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Local indistinguishability and incompleteness of entangled orthogonal bases: method to generate two-element locally indistinguishable ensembles ⋮ Quantum earth mover’s distance, a no-go quantum Kantorovich–Rubinstein theorem, and quantum marginal problem ⋮ Schur multipliers and mixed unitary maps ⋮ Locally maximally mixed states ⋮ A graphical calculus for integration over random diagonal unitary matrices ⋮ On decomposable correlation matrices

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