Conclusive Entangling Probe

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dc.creatorBrandt, Howard E.
dc.date2005-09-13
dc.date.accessioned2026-07-07T06:13:28Z
dc.date.available2026-07-07T06:13:28Z
dc.descriptionA design is given for an optimized entangling probe attacking the BB84 (Bennett-Brassard 1984) protocol of quantum key distribution and yielding maximum information to the probe for a full range of induced error rates. Probe photon polarization states become optimally entangled with the signal states on their way between the legitimate transmitter and receiver. Although standard von-Neumann projective measurements of the probe yield maximum information on the pre-privacy amplified key, if instead the probe measurements are performed with a certain positive operator valued measure, then the measurement results are conclusive, at least some of the time, for a full range of inconclusive rates.
dc.description8 pages
dc.identifierhttps://arxiv.org/abs/quant-ph/0509088
dc.identifierhttp://arxiv.org/abs/quant-ph/0509088
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/93116
dc.subjectQuantum Physics
dc.titleConclusive Entangling Probe
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