Scholars look to early 20th century radio technology to help improve Internet security
Thursday, January 28, 2016 - 21:41
in Physics & Chemistry
Standard lasers are actually not useful for secure communication because they emit what is called 'classical' light. Data eavesdroppers could extract any data being carried via classical light without detection. In contrast, a quantum Internet would be based on 'quantum' light, in which a single unit of light -- a single photon -- cannot be measured without being destroyed. Therefore, an efficient source of quantum light would enable perfectly secure communication.