Experimental quantum private queries with linear optics
Name
De Martini-2009-Experimental quantum.pdf
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180.83 KB
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Author(s)
De Martini, Francesco
Giovannetti, Vittorio
Lloyd, Seth
Maccone, Lorenzo
Nagali, Eleonora
Sansoni, Linda
Sciarrino, Fabio
Date Issued
July 2009
Journal
Physical Review A
Publisher
American Physical Society
Citation
De Martini, Francesco et al. “Experimental quantum private queries with linear optics.” Physical Review A 80.1 (2009): 010302. © 2009 The American Physical Society
Version
Final published version
Abstract
The quantum private query is a quantum cryptographic protocol to recover information from a database, preserving both user and data privacy: the user can test whether someone has retained information on which query was asked and the database provider can test the amount of information released. Here we discuss a variant of the quantum private query algorithm that admits a simple linear optical implementation: it employs the photon’s momentum (or time slot) as address qubits and its polarization as bus qubit. A proof-of-principle experimental realization is implemented.
MIT Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Massachusetts Institute of Technology. Research Laboratory of Electronics
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
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DOI of Published Version
http://dx.doi.org/10.1103/PhysRevA.80.010302
