VERFAHREN UND EINRICHTUNG ZUM SYNCHRONISIEREN UND BESCHAFFEN VON ZWILLINGSPHOTONEN FÜR EINEN QUANTEN-KRYPTOGRAPHIEPROZESS

A synchronizing method for a quantum cryptography process including the steps of: supplying a first/second photon in an entangled pair (7) to a first/second receiving station (4, 5); comparing, at each receiving station, the polarization of each received photon with a randomly selected first referen...

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Bibliographische Detailangaben
Hauptverfasser:	DE NICOLO, PAOLO, VARISCO, PIETRO, BOVINO, FABIO
Format:	Patent
Sprache:	ger
Schlagworte:	CALCULATING COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PHYSICS TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A synchronizing method for a quantum cryptography process including the steps of: supplying a first/second photon in an entangled pair (7) to a first/second receiving station (4, 5); comparing, at each receiving station, the polarization of each received photon with a randomly selected first reference base or second reference base; measuring, at each receiving station (4, 5), the time difference DeltaT between the acquisition instant tn of one photon and the acquisition instant tn-1 of the preceding received photon; and recognizing a pair of twin photons when the time difference DeltaTa measured at a first receiving station (4) and the corresponding time difference DeltaTb measured at a second receiving station (5) substantially coincide.