Russian scientists have created a long-distance quantum communication device that cannot be hacked in theory, paving the way for the development of quantum communication systems that ensure security of information exchange.
The device, which is still in its experimental stages, has the ability to transfer a single-photon quantum signal across a distance of 250 kilometers (155 miles) or more. The best part is it will be permanently changed the moment hackers try to disrupt the transmission.
The Problem With Data Security
Data security has increasingly become a major problem not just in large companies, banks and other industries, but also in small firms and individuals.
For example, Verizon Enterprise recently suffered a major security breach in which hackers were able to steal data of 1.5 million Verizon customers.
Such problems exist because present algorithms used in data encryption are almost always vulnerable to cracks, regardless of how complicated the algorithms are.
Information security using the basic laws of quantum physics is different as the original user can immediately know when there is any kind of disruptive intervention.
Making The Most Out Of Quantum
Now, a novel way to exceptionally produce and transfer quantum bits has been created by experts from ITMO University and Heriot-Watt University.
“To transmit quantum signals, we use the so-called side frequencies,” says study author Artur Gleim from ITMO. Such approach enables simplification of the device’s design and provides a large room for the quantum channel.
For study co-author Robert Collins, the discovery may pave the way for the smooth coexistence of various information with varied wavelengths in a single optical cable. Aside from that, it can also be incorporated into current fiber optics together with traditional communications. For the full article click here
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