Experimental Proposal for Achieving Superadditive Communication Capacities with a Binary Quantum Alphabet

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dc.creatorBuck, J. R.
dc.creatorvan Enk, S. J.
dc.creatorFuchs, Christopher A.
dc.date1999-03-12
dc.date1999-03-23
dc.date.accessioned2026-07-07T12:17:09Z
dc.date.available2026-07-07T12:17:09Z
dc.descriptionWe demonstrate superadditivity in the communication capacity of a binary alphabet consisting of two nonorthogonal quantum states. For this scheme, collective decoding is performed two transmissions at a time. This improves upon the previous schemes of Sasaki et al. [Phys. Rev. A 58, 146 (1998)] where superadditivity was not achieved until a decoding of three or more transmissions at a time. This places superadditivity within the regime of a near-term laboratory demonstration. We propose an experimental test based upon an alphabet of low photon-number coherent states where the signal decoding is done with atomic state measurements on a single atom in a high-finesse optical cavity.
dc.description7 pages, 5 figures
dc.identifierhttps://arxiv.org/abs/quant-ph/9903039
dc.identifierhttp://arxiv.org/abs/quant-ph/9903039
dc.identifierPhys.Rev.A61:032309,2000
dc.identifierdoi:10.1103/PhysRevA.61.032309
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/212026
dc.subjectQuantum Physics
dc.titleExperimental Proposal for Achieving Superadditive Communication Capacities with a Binary Quantum Alphabet
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