The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Oct. 13, 2021
Coldquanta, Inc., Boulder, CO (US);
Alexander Georgiyevich Radnaev, Boulder, CO (US);
ColdQuanta, Inc., Boulder, CO (US);
Abstract
Quantum state readout is achieved using four-wave mixing. A quantum-state carrier, e.g., a cesium 133 atom, is illuminated with a set of three wavelengths. In the event that the atom is in a first quantum state, e.g., an F=3 state of cesium 133, the illumination triggers emission in a first direction from the atom of a fourth wavelength due to four-wave mixing. Detection of the emission in the first direction thus indicates that the atom is in the first quantum state. In an embodiment, failure to detect an emission indicates the atom is in a second quantum state. In other embodiments, a second set of three wavelengths is used to provide a positive indication that the atom is in its second state, e.g., an F=4 state for cesium 133.