US 12,488,271 B2
Parallel sideband cooling of multiple trapped-ion motional modes with deflectors
Jeremy Matthew Sage, Acton, MA (US); and Kai Makoto Hudek, Hyattsville, MD (US)
Assigned to IonQ, Inc., College Park, MD (US)
Filed by IonQ, Inc., College Park, MD (US)
Filed on Dec. 6, 2022, as Appl. No. 18/062,404.
Claims priority of provisional application 63/286,865, filed on Dec. 7, 2021.
Prior Publication US 2024/0054380 A1, Feb. 15, 2024
Int. Cl. G06N 10/40 (2022.01)
CPC G06N 10/40 (2022.01) 18 Claims
OG exemplary drawing
 
1. A method for sideband cooling of an ion chain, comprising:
identifying a first group of ions in the ion chain and a second group of ions in the ion chain, wherein the ions in the first group of ions are different from the ions in the second group of ions; and
performing sideband cooling of the ion chain by:
applying, to the first group of ions, a first pair of optical beams using a first pair of deflectors by individually modulating the first pair of optical beams using respective acousto-optic modulators (AOMs) upstream from the first pair of deflectors, and
applying, to the second group of ions, a second pair of optical beams using a second pair of deflectors.