Classical information capacity of superdense coding

Preprint

23 January 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.quant-ph/0101117

Abstract

Classical communication through quantum channels may be enhanced by sharing entanglement. Superdense coding allows the encoding, and transmission, of up to two classical bits of information in a single qubit. In this paper, the maximum classical channel capacity for states that are not maximally entangled is derived. Particular schemes are then shown to attain this capacity, firstly for pairs of qubits, and secondly for pairs of qutrits.

Keywords

CLASSICAL COMMUNICATION
CLASSICAL INFORMATION
INFORMATION CAPACITY
SUPERDENSE CODING
CODING CLASSICAL
QUANTUM CHANNELS
CHANNEL CAPACITY
QUBIT

All Related Versions

Version 1, 2001-01-23, ArXiv
Published version: Physical Review A, 63 (2), 022302.

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