US 12,405,646 B2
Efficient cooling of ion chains for quantum computation
Jason Madjdi Amini, Takoma Park, MD (US)
Assigned to IonQ, Inc., College Park, MD (US)
Filed by IonQ, Inc., College Park, MD (US)
Filed on Jun. 21, 2023, as Appl. No. 18/339,068.
Application 18/339,068 is a continuation of application No. 17/707,575, filed on Mar. 29, 2022, granted, now 11,727,300.
Application 17/707,575 is a continuation of application No. 16/450,779, filed on Jun. 24, 2019, granted, now 11,334,811, issued on May 17, 2022.
Claims priority of provisional application 62/692,099, filed on Jun. 29, 2018.
Prior Publication US 2023/0351233 A1, Nov. 2, 2023
Int. Cl. G06F 1/20 (2006.01)
CPC G06F 1/20 (2013.01) 20 Claims
OG exemplary drawing
 
1. A method for cooling an ion chain for quantum computing, the method comprising:
confining two or more ions in the ion chain towards a bottom of an ion trap;
identifying a plurality of motional modes that is associated with the two or more ions in the ion chain;
concurrently applying respective laser beams that are each at a respective frequency to the confined two or more ions, the frequency of each laser beam being associated with the identified plurality of motional modes of the two or more ions and configured to cool at least one of the plurality of motional modes of the confined two or more ions; and
performing a quantum computation using the two or more ions in the ion chain after the plurality of motional modes of the two or more ions is cooled by the respective laser beams.