Tunable coupling of a quantum phononic resonator to a transmon qubit via galvanic-contact flip-chip architecture-Reference-Cited by-同舟云学术

Tunable coupling of a quantum phononic resonator to a transmon qubit via galvanic-contact flip-chip architecture

Published:2024-07-29 Issue:5 Volume:125 Page:
ISSN:0003-6951
Container-title:Applied Physics Letters
language:en
Short-container-title:

Author:

Ruan Xinhui¹²³^ORCID,Li Li¹⁴^ORCID,Liang Guihan¹⁴^ORCID,Zhao Silu¹⁴,Wang Jia-heng⁵,Bu Yizhou¹⁴,Chen Bingjie¹⁴,Song Xiaohui¹^ORCID,Li Xiang¹⁴,Zhang He¹⁴,Wang Jinzhe¹⁴,Zhao Qianchuan²^ORCID,Xu Kai¹⁶,Fan Heng¹⁴⁶^ORCID,Liu Yu-xi⁵^ORCID,Zhang Jing⁷⁸,Peng Zhihui³⁶^ORCID,Xiang Zhongcheng¹⁶^ORCID,Zheng Dongning¹⁴⁶^ORCID

Affiliation:

1. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences 1 , Beijing 100190, China

2. Department of Automation, Tsinghua University 2 , Beijing 100084, People's Republic of China

3. Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education, Key Laboratory for Matter Microstructure and Function of Hunan Province, Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications, Hunan Normal University 3 , Changsha 410081, People's Republic of China

4. School of Physical Sciences, University of Chinese Academy of Sciences 4 , Beijing 100049, China

5. School of Integrated Circuits, Tsinghua University 5 , Beijing 100084, China

6. Hefei National Laboratory 6 , Hefei 230088, China

7. School of Automation Science and Engineering, Xi'an Jiaotong University 7 , Xi'an 710049, China

8. MOE Key Lab for Intelligent Networks and Network Security, Xi'an Jiaotong University 8 , Xi'an 710049, China

Abstract

A hybrid system with tunable coupling between phonons and qubits shows great potential for advancing quantum information processing. In this work, we demonstrate strong and tunable coupling between a surface acoustic wave resonator and a transmon qubit based on the galvanic-contact flip-chip technique. The coupling strength varies from 2π× 7.0 to −2π× 20.6 MHz, which is extracted from different vacuum Rabi oscillation frequencies. The phonon-induced ac Stark shift of the qubit at different coupling strengths is also shown. Our approach offers a good experimental platform for exploring quantum acoustics and hybrid systems.

Funder

National Natural Science Foundation of China

Laoshan Laboratory

Publisher

AIP Publishing

Link

https://pubs.aip.org/aip/apl/article-pdf/doi/10.1063/5.0216607/20084353/052603_1_5.0216607.pdf

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