ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,406,199, issued on Sept. 2, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Quantum device" was invented by Adrien Morel (Grenoble, France) and Franck Badets (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "A quantum device includes multiple spin qubits, multiple electrometers, each being capacitively coupled to one of the spin qubits, multiple injection-locked oscillators, each being coupled to one of the electrometers and designed to transmit an excitation signal to the electrometer to which it is coupled, each excitation signal having a different frequency, an amplification circuit comprising a...