Experimental quantum private queries with linear optics

De Martini, F; Giovannetti, Vittorio; Lloyd, S; Maccone, L; Nagali, E; Sansoni, L; Sciarrino, F.

doi:10.1103/PhysRevA.80.010302

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.

Titolo:	Experimental quantum private queries with linear optics
Autori:	DE MARTINI F GIOVANNETTI, VITTORIO LLOYD S MACCONE L NAGALI E SANSONI L SCIARRINO F. mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2009
Rivista:	PHYSICAL REVIEW A
Digital Object Identifier (DOI):	http://dx.doi.org/10.1103/PhysRevA.80.010302
Handle:	http://hdl.handle.net/11384/6898
Appare nelle tipologie:	1.1 Articolo in rivista

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http://hdl.handle.net/11384/6898

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