Quantum Channel Capacities

Graeme Smith

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arXiv · 1007.2855

Quantum Channel Capacities

Graeme Smith

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Abstract

A quantum communication channel can be put to many uses: it can transmit classical information, private classical information, or quantum information. It can be used alone, with shared entanglement, or together with other channels. For each of these settings there is a capacity that quantifies a channel's potential for communication. In this short review, I summarize what is known about the various capacities of a quantum channel, including a discussion of the relevant additivity questions. I also give some indication of potentially interesting directions for future research.

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Graeme Smith. 2010-07-16. Quantum Channel Capacities. https://arxiv.org/abs/1007.2855

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