ALEXANDRIA, Va., April 7 -- United States Patent no. 12,596,141, issued on April 7, was assigned to SRI INTERNATIONAL (Menlo Park, Calif.).

"Quantum electromagnetic field sensor" was invented by Kaitlin Moore (Skillman, N.J.), Sterling Eduardo McBride (Princeton, N.J.), Winston K. Chan (Princeton, N.J.), Alan M. Braun (Princeton, N.J.) and Cale M. Gentry (Erie, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "In one example, a sensor comprising a vapor cell including a vapor of alkali atoms is disclosed. The sensor further comprises a system configured to direct electromagnetic (EM) radiation of one or more frequencies into the vapor cell and incident on the vapor of alkali atoms. The EM radiation of one...