Is the next revolution of the Internet imminent? The preprint of the underlying paper appeared already in July of 2019 (https://arxiv.org/abs/1907.12161).
"Quantum networks based on optically addressable spin qubits promise to enable secure communication, distributed quantum computing, and tests of fundamental physics. ... Here we investigate single 171Yb3+ ions in yttrium orthovanadate coupled to a nanophotonic cavity. These ions possess optical and spin transitions that are first-order insensitive to magnetic field fluctuations ... "This could form the backbone technology for the quantum internet." ... "
" ... In addition, the ytterbium ions are able to store information in their spin for 30 milliseconds. In this time, light could transmit information to travel across the continental United States. ... "
Tiny Optical Cavity Could Make Quantum Networks Possible | www.caltech.edu: Engineers at Caltech have shown that atoms in optical cavities could be foundational to the creation of a quantum internet.
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