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Collective Microwave Response for Multiple Gate-Defined Double Quantum Dots.
Lin, Ting; Gu, Si-Si; Xu, Yong-Qiang; Jiang, Shun-Li; Ye, Shu-Kun; Wang, Bao-Chuan; Li, Hai-Ou; Guo, Guang-Can; Zou, Chang-Ling; Hu, Xuedong; Cao, Gang; Guo, Guo-Ping.
Affiliation
  • Lin T; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Gu SS; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Xu YQ; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Jiang SL; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Ye SK; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Wang BC; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Li HO; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Guo GC; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Zou CL; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Hu X; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Cao G; Chinese Academy of Science Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, Anhui 230026, China.
  • Guo GP; Chinese Academy of Science Center for Excellence in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
Nano Lett ; 23(10): 4176-4182, 2023 May 24.
Article in En | MEDLINE | ID: mdl-37133858
ABSTRACT
We fabricate and characterize a hybrid quantum device that consists of five gate-defined double quantum dots (DQDs) and a high-impedance NbTiN transmission resonator. The controllable interactions between DQDs and the resonator are spectroscopically explored by measuring the microwave transmission through the resonator in the detuning parameter space. Utilizing the high tunability of the system parameters and the high cooperativity (Ctotal > 17.6) interaction between the qubit ensemble and the resonator, we tune the charge-photon coupling and observe the collective microwave response changing from linear to nonlinear. Our results present the maximum number of DQDs coupled to a resonator and manifest a potential platform for scaling up qubits and studying collective quantum effects in semiconductor-superconductor hybrid cavity quantum electrodynamics systems.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nano Lett Year: 2023 Document type: Article Affiliation country: China
Fulltext
Add to My VHL
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XML
PubMed Links
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Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Nano Lett Year: 2023 Document type: Article Affiliation country: China