Communications of the ACM
Superconducting Circuits Push the Limits of Quantum Data Transfer
Said researcher Andrew Cleland, "Overall, our work demonstrates a feasible path towards highly efficient communication of more complex quantum states than just single photons between two nodes."
Credit: Grebel et al/Physical Review Letters
University of Chicago researchers created a quantum communication testbed with remote superconducting nodes, laying the foundation for more secure communication networks.
Two superconducting qubits were connected to tunable superconducting resonators, each attached to a transmission line via a variable coupler.
The coupler was activated, releasing the quantum state from the resonator and transmitting it as a group of entangled mobile photons.
The other resonator received those photons, and its qubit analyzed them.
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