Quantum Flags and New Bounds on the Quantum Capacity of the Depolarizing Channel.
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DOI: 10.1103/physrevlett.125.020503
Abstract: A new upper bound for the quantum capacity of the d-dimensional depolarizing channels is presented. Our derivation makes use of a flagged extension of the map where the receiver obtains a copy of a state… read more here.
Keywords: flags new; depolarizing channel; new bounds; capacity ... See more keywords