Los Alamos National Labs Has Been Running a Quantum Internet for 2 Years


Wed, May 8th, 2013 20:00 by capnasty NEWS

A quantum internet, a sophisticated work of fiction that kept security experts daydreaming because of the perfect secure communication it can provide, not only already exists but a U.S. government laboratory, the Los Alamos National Lab, has been running it for two years.

The basic idea here is that the act of measuring a quantum object, such as a photon, always changes it. So any attempt to eavesdrop on a quantum message cannot fail to leave telltale signs of snooping that the receiver can detect. That allows anybody to send a “one-time pad” over a quantum network which can then be used for secure communication using conventional classical communication.

That sets things up nicely for perfectly secure messaging known as quantum cryptography and this is actually a fairly straightforward technique for any half decent quantum optics lab. Indeed, a company called ID Quantique sells an off-the-shelf system that has begun to attract banks and other organisations interested in perfect security.



You may also be interested in:

NASA Launches Open Source Projects
If You're Wondering if It's Worth Building Your Own Mac
IBM Develops Even Smaller Microprocessors Using Carbon Nanotubes
When Computer Viruses Infect Worms by Mistake
Brain Games Don't Make You Smarter