摘要
Conerent 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.
作者
Ming-Bo Chen
Bao-Chuan Wang
Si-Si Gu
Ting Lin
Hai-Ou Li
Gang Cao
Guo-Ping Guo
陈明博;王保传;顾思思;林霆;李海欧;曹刚;郭国平(Key Laboratory of Quantum Information,CAS,University of Science and Technology of China,Hefei 230026,China;CAS Center for Excellence in Quantum Information and Quantum Physics,University of Science and Technology of China,Hefei 230026,China;Origin Quantum Computing Company Limited,Hefei 230026,China)
基金
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)
the Anhui Initiative in Quantum Information Technologies,China(Grant No.AHY080000)。
