Tunable frequency conversion and comb generation with a superconducting artificial atom
Abstract
We investigate the power spectral density emitted by a superconducting artificial atom coupled to the end of a semi-infinite transmission line and driven by two continuous radio frequency fields. In this setup, we observe the generation of multiple frequency peaks and the formation of frequency combs with equal detuning between those peaks. The frequency peaks originate from wave mixing of the drive fields, mediated by the artificial atom, highlighting the potential of this system as both a frequency converter and a frequency-comb generator. We demonstrate precise control and tunability in generating these frequency features, aligning well with theoretical predictions, across a relatively wide frequency range (tens of MHz, exceeding the linewidth of the artificial atom). The extensive and simple tunability of this frequency converter and comb generator, combined with its small physical footprint, makes it promising for quantum optics on chips and other applications in quantum technology.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (15)
Fahad Aziz
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,
Zhengqi Niu
State Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Science 3 , Shanghai 200050,
Tzu-Yen Hsieh
Department of Physics and CQSE, National Taiwan University 4 , Taipei 10617,
Kuan Ting Lin
Trapped-Ion Quantum Computing Laboratory, Hon Hai Research Institute 5 , Taipei 11492,
Yu-Huan Huang
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,
Yen-Hsiang Lin
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,
Ching-Yeh Chen
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,
Yu-Ting Cheng
Kai-Min Hsieh
Department of Physics, City University of Hong Kong 2 , Kowloon, Hong Kong SAR 999077,
Jeng-Chung Chen
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,
Anton Frisk Kockum
Guin-Dar Lin
Department of Physics and CQSE, National Taiwan University 4 , Taipei 10617,
Zhi-Rong Lin
State Key Laboratory of Materials for Integrated Circuits, Shanghai Institute of Microsystem and Information Technology (SIMIT), Chinese Academy of Science 3 , Shanghai 200050,
Ping-Yi Wen
Department of Physics, National Chung Cheng University 9 , Chiayi 621301,
Io-Chun Hoi
Department of Physics, National Tsing Hua University 1 , Hsinchu 30013,