dorsal/arxiv
View SchemaRobust polarization-based quantum key distribution over collective-noise channel
| Authors | J. -C. Boileau, D. Gottesman, R. Laflamme, D. Poulin, R. W. Spekkens |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0306199 |
| URL | https://arxiv.org/abs/quant-ph/0306199 |
| DOI | 10.1103/PhysRevLett.92.017901 |
| Journal | Phys. Rev. Lett. 92, 17901 (2004) |
Abstract
We present two polarization-based protocols for quantum key distribution. The protocols encode key bits in noiseless subspaces or subsystems, and so can function over a quantum channel subjected to an arbitrary degree of collective noise, as occurs, for instance, due to rotation of polarizations in an optical fiber. These protocols can be implemented using only entangled photon-pair sources, single-photon rotations, and single-photon detectors. Thus, our proposals offer practical and realistic alternatives to existing schemes for quantum key distribution over optical fibers without resorting to interferometry or two-way quantum communication, thereby circumventing, respectively, the need for high precision timing and the threat of Trojan horse attacks.
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"abstract": "We present two polarization-based protocols for quantum key distribution. The\nprotocols encode key bits in noiseless subspaces or subsystems, and so can\nfunction over a quantum channel subjected to an arbitrary degree of collective\nnoise, as occurs, for instance, due to rotation of polarizations in an optical\nfiber. These protocols can be implemented using only entangled photon-pair\nsources, single-photon rotations, and single-photon detectors. Thus, our\nproposals offer practical and realistic alternatives to existing schemes for\nquantum key distribution over optical fibers without resorting to\ninterferometry or two-way quantum communication, thereby circumventing,\nrespectively, the need for high precision timing and the threat of Trojan horse\nattacks.",
"arxiv_id": "quant-ph/0306199",
"authors": [
"J. -C. Boileau",
"D. Gottesman",
"R. Laflamme",
"D. Poulin",
"R. W. Spekkens"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.017901",
"journal_ref": "Phys. Rev. Lett. 92, 17901 (2004)",
"title": "Robust polarization-based quantum key distribution over collective-noise channel",
"url": "https://arxiv.org/abs/quant-ph/0306199"
},
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