230 citations · 2.4k across the 68 of their papers we have counts for
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Remarks on the classical capacity of quantum channel
A. S. Holevo
A direct proof of the relation between the one-shot classical capacity and the minimal output entropy for covariant quantum channels is suggested. The structure of covariant channe…
Entanglement-assisted capacity of constrained quantum channel
A. S. Holevo
In this paper we fill the gap in previous works by proving the formula for entanglement-assisted capacity of quantum channel with additive constraint (such as bosonic Gaussian chan…
On states, channels and purification
A. S. Holevo
In this note we introduce purification for a pair where is a quantum state and is a channel, which allows in particular a natural extension of the properties of re…
Counterexample to an additivity conjecture for output purity of quantum channels
R. F. Werner, A. S. Holevo
A conjecture arising naturally in the investigation of additivity of classical information capacity of quantum channels states that the maximal purity of outputs from a quantum cha…