Teletrasporto quantistico (It., Ing., Fr.)

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Quantum teleportation, one possible application: create a pair of entangled photons and send one of them during a communication between two computers. If the message is read by a spy, the entangled particle will change, showing that the exchange was intercepted. That would be the best way to secure the transmission of an encryption key.   http://www.cbc.ca/news/canada/calgary/calgary-teleportation-quantum-networking-city-hall-1.3770440

 

“Téléportation quantique, une application possible : créer une paire de photons intriqués et envoyer l’un d’eux lors d’une communication entre deux ordinateurs. Si le message est lu par un espion, la particule intriquée sera modifiée, prouvant que l’échange a été intercepté. Ce serait le meilleur moyen pour sécuriser la transmission d’une clé de cryptage. ”  http://www.futura-sciences.com/sciences/actualites/physique-teleportation-quantique-testee-pleine-ville-64464/

Una conseguenza di questo fenomeno è che quando si effettua una misurazione su una delle due particelle, il suo stato quantistico, fino a quel momento ignoto, “collassa” su un determinato valore; e fa collassare anche quello della particella correlata, in modo istantaneo, qualunque sia la distanza a cui si trova.  http://www.lescienze.it/news/2016/09/19/news/teletrasporto_quantistico_rete-3239324/

 

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