Abstract

Reliable information transmission between spatially separated nodes is fundamental to a network architecture for scalable quantum technology. Spin qubit in semiconductor quantum dots is a promising candidate for quantum information processing. However, there remains a challenge to design a practical path from the existing experiments to scalable quantum processor. Here we propose a module consisting of spin singlet-triplet qubits and single microwave photons. We show a high degree of control over interactions between the spin qubit and the quantum light field can be achieved. Furthermore, we propose preparation of a shaped single photons with an efficiency of 98%, and deterministic quantum state transfer and entanglement generation between remote nodes with a high fidelity of 90%. This spin-photon module has met the threshold of particular designed error-correction protocols, thus provides a feasible approach towards scalable quantum network architecture.

Details

Title
Spin-photon module for scalable network architecture in quantum dots
Author
Xing-Yu, Zhu 1 ; Tu, Tao 2 ; Ao-Lin, Guo 3 ; Zong-Quan, Zhou 1 ; Guo Guang-Can 1 ; Chuan-Feng, Li 1 

 Chinese Academy of Sciences, Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, P.R. China (GRID:grid.9227.e) (ISNI:0000000119573309) 
 Chinese Academy of Sciences, Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, P.R. China (GRID:grid.9227.e) (ISNI:0000000119573309); University of California at Los Angeles, Department of Physics and Astronomy, California, USA (GRID:grid.19006.3e) (ISNI:0000 0000 9632 6718) 
 University of California at Los Angeles, Department of Physics and Astronomy, California, USA (GRID:grid.19006.3e) (ISNI:0000 0000 9632 6718) 
Publication year
2020
Publication date
2020
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2379540489
Copyright
This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.