Using Lasers to Boost Security

It’s been more than 20 years since quantum cryptography systems have been developed, taking over communication security from classical cryptography systems–the kind that used extremely difficult mathematical equations. Now, however, scientists Jacob Scheuer and Amnon Yariv have designed a new kind of classical key distribution system using ultra-long lasers that overcomes the practical challenges faced by quantum systems with its realistic simplicity and symmetry.

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