Classical information capacity of superdense coding

Details Classical information capacity of superdense coding Classical information capacity of superdense coding

2001-01-23

arxiv.org/abs/quant-ph/0101117v1

Phys. Rev. A 63, 022302 (2001)

Physics

Quantum Physics

3 pages, ReVTeX

Scientific paper

10.1103/PhysRevA.63.022302

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.

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