US 12,225,831 B2
Superconducting qubit and preparation method thereof, quantum storage device, and quantum computer
Hao Deng, Hangzhou (CN)
Assigned to Alibaba Group Holding Limited, Grand Cayman (KY)
Filed by ALIBABA GROUP HOLDING LIMITED, Grand Cayman (KY)
Filed on Oct. 19, 2021, as Appl. No. 17/505,086.
Claims priority of application No. 202011166998.4 (CN), filed on Oct. 27, 2020.
Prior Publication US 2022/0131064 A1, Apr. 28, 2022
Int. Cl. H10N 60/01 (2023.01); G06N 10/00 (2022.01); H10N 60/12 (2023.01); H10N 60/80 (2023.01); H10N 60/83 (2023.01)
CPC H10N 60/0912 (2023.02) [G06N 10/00 (2019.01); H10N 60/0884 (2023.02); H10N 60/12 (2023.02); H10N 60/805 (2023.02); H10N 60/83 (2023.02)] 6 Claims
OG exemplary drawing
 
1. A superconducting qubit, comprising:
a Josephson junction and a non-Josephson junction area electrically connected, wherein the non-Josephson junction area comprises a first layer of superconducting material, a second layer of superconducting material, a Josephson junction insulating layer, and a third layer of superconducting material from bottom to top;
the Josephson junction comprises a Josephson junction first layer electrode deposited from the second layer of superconducting material and a Josephson junction second layer electrode deposited from the third layer of superconducting material, wherein the Josephson junction first layer electrode and the Josephson junction second layer electrode are crossed, and a cross area of the Josephson junction first layer electrode and the Josephson junction second layer electrode comprises the second layer of superconducting material, the Josephson junction insulating layer, and a third layer of superconducting material from bottom to top.