Intriguing application of quantum communication. Reminds me me some papers read in the way back about use of split wavelength data streams. Worth a look.
Secure Quantum Communications Network the Largest of Its Kind
New Scientist
Chris Stokel-Walker
September 2, 2020
Scientists at the U.K.'s University of Bristol have developed a secure quantum communications network based on multiplexing entanglement, a process that can be used to produce a secure encryption key. Multiplexing entanglement splits photons from a single laser based on their wavelength, rather than linking users one-to-one. Bristol's Siddarth Joshi said each wavelength can support a data stream, allowing the system to accommodate 50 to 100 users with existing hardware. Joshi says this method can be used to link millions of devices together, and his goal "is to build the quantum Internet."... '
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