Theory of Probability and Its Applications
Coding Theorems for Hybrid Channels
A. A. Kuznetsova, A. S. Holevo
Abstract
The main result of this paper is the coding theorem for the entanglement-assisted capacity of measurement channel with arbitrary alphabet (Theorem \refcea). As a by-product, a number of results concerning entropies of hybrid (classical-quantum) systems are obtained, as well as the capacities of channels with hybrid output, which are used in the proof of Theorem 3.