Classical information capacity of superdense coding
Date
2001-01-10
Authors
Bowen, Garry
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American Physical Society
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, first for pairs of qubits, and second for pairs of qutrits.
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Keywords
Keywords: Asymptotic stability; Channel capacity; Information theory; Mathematical operators; Matrix algebra; Signal encoding; Quantum computation; Superdense coding (SDC); Quantum theory
Citation
Physical Review A 63.2 (2001): 022302/1-4
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Physical Review A: Atomic, Molecular and Optical Physics
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Journal article
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