Comment on 'Secure Communication using mesoscopic coherent states', Barbosa et al, Phys Rev Lett 90, 227901 (2003)

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dc.creatorYuan, Z. L.
dc.creatorShields, A. J.
dc.date2005-02-04
dc.date.accessioned2026-07-07T06:12:06Z
dc.date.available2026-07-07T06:12:06Z
dc.descriptionIn a recent letter, Barbosa et al [PRL 90, 227901(2003)] claim that secure communication is possible with bright coherent pulses, by using quantum noise to hide the data from an eavesdropper. We show here that the secrecy in the scheme of Barbosa et al is unrelated to quantum noise, but rather derives from the secret key that sender and receiver share beforehand.
dc.identifierhttps://arxiv.org/abs/quant-ph/0502032
dc.identifierhttp://arxiv.org/abs/quant-ph/0502032
dc.identifierPhys. Rev. Lett. 94, 048901(2005)
dc.identifierdoi:10.1103/PhysRevLett.94.048901
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/92687
dc.subjectQuantum Physics
dc.titleComment on 'Secure Communication using mesoscopic coherent states', Barbosa et al, Phys Rev Lett 90, 227901 (2003)
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