Micro-scale photon source in a hybrid cQED system

• 作者: Ming-Bo Chen Bao-Chuan Wang Si-Si Gu Ting Lin Hai-Ou Li Gang Cao Guo-Ping Guo
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: SPECIAL TOPIC—Quantum computation and quantum simulation
• 页码范围: 101-106
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/abe29b

摘要

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.