Entanglement-assisted capacity of constrained channels

A. S. Holevo

doi:10.1117/12.517873

23 July 2003 Entanglement-assisted capacity of constrained channels

A. S. Holevo

Proceedings Volume 5128, First International Symposium on Quantum Informatics; (2003) https://doi.org/10.1117/12.517873
Event: First International Symposium on Quantum Informatics, 2002, Lipki, Russian Federation

Abstract

In this paper we fil a gap in previous work by proving the conjectured formula for the antanglement-assisted capacity of quantum channel with additive input constraint (such as Bosonic Gaussian channel). The main tools are the coding theorem for classical-quantum constrained channels and a finite dimensional approximation of the input density operators for the entanglement-assisted capacity.

Citation Download Citation

A. S. Holevo "Entanglement-assisted capacity of constrained channels", Proc. SPIE 5128, First International Symposium on Quantum Informatics, (23 July 2003); https://doi.org/10.1117/12.517873

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