US 11,875,223 B2
Quantum bit control apparatus
Zhengyu Li, Shenzhen (CN); Changzheng Su, Shenzhen (CN); Yang Zou, Zürich (CH); and Yongjing Cai, Shenzhen (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Apr. 28, 2021, as Appl. No. 17/243,072.
Application 17/243,072 is a continuation of application No. PCT/CN2019/112421, filed on Oct. 22, 2019.
Claims priority of application No. 201811268446.7 (CN), filed on Oct. 29, 2018.
Prior Publication US 2021/0279630 A1, Sep. 9, 2021
Int. Cl. G06N 10/00 (2022.01); H10N 69/00 (2023.01)
CPC G06N 10/00 (2019.01) [H10N 69/00 (2023.02)] 20 Claims
OG exemplary drawing
 
1. A quantum bit control apparatus, comprising:
a control signal generator;
N optoelectronic detectors, wherein N is a positive integer greater than 1;
a quantum chip; and
a shielding apparatus;
wherein the N optoelectronic detectors are disposed in the shielding apparatus, and wherein an inner part of the shielding apparatus is in a vacuum state;
wherein the control signal generator is disposed in a first temperature area, and wherein the control signal generator is configured to generate N optical control signals, and is further configured to send the N optical control signals, respectively, to the N optoelectronic detectors;
wherein the N optoelectronic detectors are disposed in a second temperature area, and wherein a temperature of the second temperature area is lower than a temperature of the first temperature area;
wherein the N optoelectronic detectors are configured to convert the received optical control signals into electronically controlled signals, and are further configured to send the electronically controlled signals to the quantum chip disposed in the shielding apparatus; and
wherein the quantum chip is disposed in the second temperature area, and is configured to control a quantum bit in the quantum chip based on the received N electronically controlled signals.