QUANTIZATION COMMUNICATION METHOD AND DEVICE

PROBLEM TO BE SOLVED: To provide a quantization communication method and device that can be realized with two polarized states of photons. SOLUTION: A tangled state of two photons by polarization is sequentially generated and each polarization is changed depending on information to be transmitted. A...

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Bibliographische Detailangaben
Hauptverfasser:	MOTOYOSHI AKIO, MATSUOKA MASAHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF TRANSMISSION TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a quantization communication method and device that can be realized with two polarized states of photons. SOLUTION: A tangled state of two photons by polarization is sequentially generated and each polarization is changed depending on information to be transmitted. A sender possesses the 1st photon and transmits the other 2nd photon in a tangled state having polarization in correlation with the 1st photon in terms of quantum mechanics to a recipient. The sender sequentially measures the polarization of the 1st photon, transmits its measurement result to the recipient via a classic communication path, the recipient sequentially measures the polarization of the 2nd photon appearing in correlation with the 1st photon in terms of quantum mechanics and extracts the information to be sent by the sender according to the measurement result and that sent from the sender. The sender and the recipient share the changes in the polarization of the 1st and 2nd photons and through the repetition of classic communication between the sender and the recipient, the recipient can extract the information to be sent by the sender so as to attain quantum encryption communication that can highly be protected against tapping.