Scientific Results

Device-independent entanglement-based Bennett 1992 protocol

Year: 2012

Authors: Lucamarini M., Vallone G., Gianani I., Mataloni P., Di Giuseppe G.

Autors Affiliation: Scuola di Scienze e Tecnologie, Divisione di Fisica, I-62032 Camerino (MC), Italy;
Dipartimento di Fisica, Università Sapienza di Roma, I-00185 Roma, Italy;
Department of Information Engineering, University of Padova, I-35131 Padova, Italy;
Istituto Nazionale di Ottica, Consiglio Nazionale delle Ricerche (INO-CNR), Largo Enrico Fermi 6, I-50125 Firenze, Italy;
CriptoCam srl, Via Madonna delle Carceri 9, I-62032 Camerino (MC), Italy

Abstract: In this paper we set forth a connection between the Bennett 1992 protocol and a Bell inequality. This allows us to extend the usual prepare-and-measure protocol to its entanglement-based formulation. We exploit a recent result in the framework of device-independent quantum key distribution to provide a simple, model-independent, security proof for the protocol. The minimum efficiency required for a practical implementation of the scheme can be as low as 75% in the completely untrusted case and 50% in case the sender is assumed to be trusted.


Volume: 86 (3)      Pages from: 032325  to: 032325

More Information: We thank K. Tamaki for fundamental discussions and Ll. Masanes, S. Pironio, and A. Acin for a feedback on their work. Our work was supported by EU-Project CHISTERAQUASAR and by PRIN 2009 of MIUR (Ministero dell\’Istruzione, dell\’Universita e della Ricerca). M.L. was supported by the 5% Grant No. C.F. 81001910439. G.V. was partially supported by the Strategic-Research-Project QUINTET of the Department of Information Engineering, University of Padova, and the Strategic-Research-Project QUANTUMFUTURE of the University of Padova.
KeyWords: quantum key distribution; cryptography; nonlocality; efficiency; states
DOI: 10.1103/PhysRevA.86.032325

Citations: 17
data from “WEB OF SCIENCE” (of Thomson Reuters) are update at: 2022-01-23
References taken from IsiWeb of Knowledge: (subscribers only)
Connecting to view paper tab on IsiWeb: Click here
Connecting to view citations from IsiWeb: Click here

This site uses cookies. If you decide to continue browsing we consider that you accept their use. For more information about cookies and how to delete them please read our Info Policy on cookies use.
Read more