Micro-scale photon source in a hybrid cQED system

doi:10.1088/1674-1056/abe29b

中国物理B ›› 2021, Vol. 30 ›› Issue (4): 48507-.doi: 10.1088/1674-1056/abe29b

所属专题： SPECIAL TOPIC — Quantum computation and quantum simulation

收稿日期:2020-11-20 修回日期:2020-12-30 接受日期:2021-02-03 出版日期:2021-03-16 发布日期:2021-04-02

Micro-scale photon source in a hybrid cQED system

Ming-Bo Chen(陈明博)^1,2, Bao-Chuan Wang(王保传)^1,2, Si-Si Gu(顾思思)^1,2, Ting Lin(林霆)^1,2, Hai-Ou Li(李海欧)^1,2, Gang Cao(曹刚)^1,2,†, and Guo-Ping Guo(郭国平)^1,2,3,‡

1 Key Laboratory of Quantum Information, CAS, University of Science and Technology of China, Hefei 230026, China; 2 CAS Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei 230026, China; 3 Origin Quantum Computing Company Limited, Hefei 230026, China

Received:2020-11-20 Revised:2020-12-30 Accepted:2021-02-03 Online:2021-03-16 Published:2021-04-02
Contact: ^†Corresponding author. E-mail: gcao@ustc.edu.cn ^‡Corresponding author. E-mail: gpguo@ustc.edu.cn
Supported by:
Project supported by the National Key Research and Development Program of China (Grant No. 2016YFA0301700), the National Natural Science Foundation of China (Grant Nos. 61922074, 11674300, 61674132, 11625419, and 11804327), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB24030601), and the Anhui Initiative in Quantum Information Technologies, China (Grant No. AHY080000).

摘要/Abstract

Abstract: Coherent photon source is an important element that has been widely used in spectroscopy, imaging, detection, and teleportation in quantum optics. However, it is still a challenge to realize micro-scale coherent emitters in semiconductor systems. We report the observation of gain in a cavity-coupled GaAs double quantum dot system with a voltage bias across the device. By characterizing and analyzing the cavity responses to different quantum dot behaviors, we distinguish the microwave photon emission from the signal gain. This study provides a possibility to realize micro-scale amplifiers or coherent microwave photon sources in circuit quantum electrodynamics (cQED) hybrid systems.

Key words: SQUID array resonator, double quantum dot, electron-photon coupling, photon emission

中图分类号: (Quantum well devices (quantum dots, quantum wires, etc.))

85.35.Be

42.50.Pq (Cavity quantum electrodynamics; micromasers) 42.60.Da (Resonators, cavities, amplifiers, arrays, and rings)

. [J]. 中国物理B, 2021, 30(4): 48507-.

Ming-Bo Chen(陈明博), Bao-Chuan Wang(王保传), Si-Si Gu(顾思思), Ting Lin(林霆), Hai-Ou Li(李海欧), Gang Cao(曹刚), and Guo-Ping Guo(郭国平). Micro-scale photon source in a hybrid cQED system[J]. Chin. Phys. B, 2021, 30(4): 48507-.

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Micro-scale photon source in a hybrid cQED system

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