US 11,791,818 B2
Josephson nonlinear circuit
Shantanu Mundhada, New Haven, CT (US); Nicholas Frattini, New Haven, CT (US); Shruti Puri, New Haven, CT (US); Shyam Shankar, New Haven, CT (US); Steven M. Girvin, Hamden, CT (US); and Michel Devoret, New Haven, CT (US)
Assigned to Yale University, New Haven, CT (US)
Appl. No. 17/423,631
Filed by Yale University, New Haven, CT (US)
PCT Filed Jan. 15, 2020, PCT No. PCT/US2020/013675
§ 371(c)(1), (2) Date Jul. 16, 2021,
PCT Pub. No. WO2020/150348, PCT Pub. Date Jul. 23, 2020.
Claims priority of provisional application 62/812,714, filed on Mar. 1, 2019.
Claims priority of provisional application 62/793,850, filed on Jan. 17, 2019.
Prior Publication US 2022/0103172 A1, Mar. 31, 2022
Int. Cl. H03K 17/92 (2006.01); H10N 69/00 (2023.01); G06N 10/00 (2022.01); H10N 60/80 (2023.01)
CPC H03K 17/92 (2013.01) [H10N 69/00 (2023.02); G06N 10/00 (2019.01); H10N 60/805 (2023.02)] 23 Claims
OG exemplary drawing
 
1. A nonlinear superconducting circuit:
a first nonlinear superconducting device with a potential having a positive anharmonicity;
a second nonlinear superconducting device coupled to the first nonlinear superconducting device, wherein:
the second nonlinear superconducting device has a potential with a negative anharmonicity; and
a resonant frequency of the first nonlinear superconducting device is equal to a resonant frequency of the second nonlinear superconducting device.