Active reset of superconducting qubits using the electronics based on RF switches-Reference-Cited by-同舟云学术

Active reset of superconducting qubits using the electronics based on RF switches

Published:2023-09-01 Issue:9 Volume:13 Page:
ISSN:2158-3226
Container-title:AIP Advances
language:en
Short-container-title:

Author:

Han Lian-Chen¹²^ORCID,Xu Yu²³^ORCID,Lin Jin²³,Chen Fu-Sheng²³,Li Shao-Wei²³,Guo Cheng²,Li Na²⁴^ORCID,Li Dong-Dong²⁵^ORCID,Li Yu-Huai²³,Gong Ming²³,Liao Sheng-Kai¹²³⁴^ORCID,Peng Cheng-Zhi¹²³⁴^ORCID

Affiliation:

1. Department of Modern Physics, School of Physical Sciences, University of Science and Technology of China 1 , Hefei 230026, China

2. Shanghai Research Center for Quantum Science and CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China 2 , Shanghai 201315, China

3. Hefei National Laboratory, University of Science and Technology of China 3 , Hefei 230088, China

4. School of Cyber Science and Technology, University of Science and Technology of China 4 , Hefei 230026, China

5. QuantumCTek Co., Ltd. 5 , Hefei 230088, China

Abstract

Active reset of qubits is a crucial step in achieving quantum algorithms, particularly in fault-tolerant quantum computing, as it allows qubits to be quickly initialized to the ground state. In this paper, we demonstrate active reset of superconducting qubits using the feedback electronics based on RF switches. We are able to reset the qubit to the ground state in 11.412 µs with a success rate of 99.82%, which is better than the natural relaxation method in terms of both time consumption (180 µs) and success rate (99.61%). The demonstrated method facilitates fast and high-fidelity qubit initialization, holding practical significance for large-scale quantum computation.

Funder

Shanghai Municipal Science and Technology Major Project

Anhui Provincial Natural Science Foundation

Youth Innovation Promotion Association