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US 12,225,831 B2Granted
Superconducting qubit and preparation method thereof, quantum storage device, and quantum computer
AssigneeAlibaba Group Holding Limited
InventorHao Deng
Life of this patent
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Abstract
The present disclosure provides a superconducting qubit. The superconducting qubit includes: a Josephson junction and a non-Josephson junction area, wherein the non-Josephson junction area includes a first layer of superconducting material, the first layer of superconducting material being superconducting material deposited on the non-Josephson junction area before ion milling on the Josephson junction and the non-Josephson junction area during preparation of the superconducting qubit.
Claims6
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.
A quantum computer, comprising:
- a quantum storage device configured to store quantum computing information;
- and
- a quantum effector configured to control quantum algorithms and quantum codes, wherein both the quantum storage device and the quantum effector conduct a quantum manipulation through a quantum state constituted by a superconducting qubit, wherein the superconducting qubit comprises:
- 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;
- and 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.
2 more elements
Dependencies are inferred from the claim text.