One of the dreams for security experts is the creation of a quantum internet that allows perfectly secure communication based on the powerful laws of quantum mechanics.
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.
These systems have an important limitation, however. The current generation of quantum cryptography systems are point-to-point connections over a single length of fibre, So they can send secure messages from A to B but cannot route this information onwards to C, D, E or F. That’s because the act of routing a message means reading the part of it that indicates where it has to be routed. And this inevitably changes it, at least with conventional routers. This makes a quantum internet impossible with today’s technology
Government Lab Reveals It Has Operated Quantum Internet
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- Sabre
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Government Lab Reveals It Has Operated Quantum Internet
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Sabre (Julian)
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Good choice putting $4,000 rims on your 1990 Honda Civic. That's like Betty White going out and getting her tits done.
- ElZorro
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Re: Government Lab Reveals It Has Operated Quantum Internet
meh. just a fad.
Jason "El Zorro" Fox
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- Raven
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Re: Government Lab Reveals It Has Operated Quantum Internet
They'll never get it to work cause the NSA listens to everything.
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- drwrx
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Re: Government Lab Reveals It Has Operated Quantum Internet
I'm sorry can you say that again, and into my lapel please.