Transferring information using quanta is a great way to avoid any "leaks", but as it stands, it looks more like Morse code than high-speed broadband ADSL. This could change with a new breakthrough in quantum technology that uses patterns of light to transmit quantum codes, potentially opening the way for quantum communication with an infinite number of channels to send encrypted transmissions.
The essence of the discovery
A team of Scottish and South African researchers have presented the world's first experimental model in which quantum information can be transmitted through a series of photons. The concept allows you to reduce the risk of data loss and use different light patterns to transfer large amounts of data.
Test setup diagram
One of the main problems
The transmission of a sequence of qubits over a distance often leads to their loss - this is one of the main problems today. Scientists have managed to send photons from space using a split laser beam at a distance of about 1200 kilometers. This is probably a breakthrough for scientists, but from the point of view of global networks, an absurdly short distance. Transmission also requires line of sight.
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What are the advantages of the new method?
The new transmission method just found is a kind of "booster" that can fire at regular intervals, allowing particles to pass through their quantum states.
Also, quantum states are usually binary, making them look like Morse code: dots and dashes. Instead of creating messages from ones and zeros (or “dots” and “dashes”), the new technique can be used to transfer additional information onto a particle using light patterns.
Detailed layout of the test setup
This is not new in and of itself, but previously sending information encoded as a light pattern required a lot of photons to travel meaningful distances.
An infinite number of communication channels
The new technique allows photons to "move" so information can be transmitted over long distances by repeating short sequences. And the use of light patterns to convey information opens the way to an almost infinite number of communication channels. A related study was published in Nature Communications.
Grigory Matyukhin