ALEXANDRIA, Va., Sept. 3 -- United States Patent no. 12,405,646, issued on Sept. 2, was assigned to IonQ Inc. (College Park, Md.).

"Efficient cooling of ion chains for quantum computation" was invented by Jason Madjdi Amini (Takoma Park, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure describes various aspects of techniques for cooling a chain of ions to near the combined ground state that does not grow with the number of ions in the chain. By addressing each ion individually and using each ion to cool a different motional mode, it is possible to cool the motional modes concurrently. In an example, a third of the total motional modes can be cooled at the same time. In an aspect, the techniq...