dorsal/arxiv
View SchemaExperimental Proposal for Achieving Superadditive Communication Capacities with a Binary Quantum Alphabet
| Authors | J. R. Buck, S. J. van Enk, Christopher A. Fuchs |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/9903039 |
| URL | https://arxiv.org/abs/quant-ph/9903039 |
| DOI | 10.1103/PhysRevA.61.032309 |
| Journal | Phys.Rev.A61:032309,2000 |
Abstract
We 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.
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"abstract": "We demonstrate superadditivity in the communication capacity of a binary\nalphabet consisting of two nonorthogonal quantum states. For this scheme,\ncollective decoding is performed two transmissions at a time. This improves\nupon the previous schemes of Sasaki et al. [Phys. Rev. A 58, 146 (1998)] where\nsuperadditivity was not achieved until a decoding of three or more\ntransmissions at a time. This places superadditivity within the regime of a\nnear-term laboratory demonstration. We propose an experimental test based upon\nan alphabet of low photon-number coherent states where the signal decoding is\ndone with atomic state measurements on a single atom in a high-finesse optical\ncavity.",
"arxiv_id": "quant-ph/9903039",
"authors": [
"J. R. Buck",
"S. J. van Enk",
"Christopher A. Fuchs"
],
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"quant-ph"
],
"doi": "10.1103/PhysRevA.61.032309",
"journal_ref": "Phys.Rev.A61:032309,2000",
"title": "Experimental Proposal for Achieving Superadditive Communication Capacities with a Binary Quantum Alphabet",
"url": "https://arxiv.org/abs/quant-ph/9903039"
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