Nonorthogonal Quantum States Maximize Classical Information Capacity
Abstract
Description
I demonstrate that, rather unexpectedly, there exist noisy quantum channels for which the optimal classical information transmission rate is achieved only by signaling alphabets consisting of nonorthogonal quantum states.
5 pages, REVTeX, mild extension of results, much improved presentation, to appear in Physical Review Letters
5 pages, REVTeX, mild extension of results, much improved presentation, to appear in Physical Review Letters