One-step entanglements generation on distant superconducting resonators in the dispersive regime

  • Ming Hua
  • Ming-Jie Tao
  • Faris Alzahrani
  • Aatef Hobiny
  • Hai-Rui Wei
  • Fu-Guo Deng


We present a scalable quantum-bus-based device for generating the entanglement on photons in distant superconducting resonators (SRs). The device is composed of some one-dimensional (1D) SRs \(r_j\) coupled to the quantum bus (another common resonator R) in its different positions assisted by superconducting quantum interferometer devices which are used to tune the coupling strengths between \(r_j\) and R. By using the technique for catching and releasing a photon state in a 1D SR, it can work as an entanglement generator or a node in quantum communication. To demonstrate the performance of this device, we propose a one-step scheme to generate high-fidelity Bell state on photons in two distant SRs. It works in the dispersive regime of \(r_j\) and R, which enables us to extend it to generate high-fidelity multi-Bell states on different resonator pairs simultaneously.


Bell state Entanglement Superconducting resonator Superconducting quantum interferometer device 



This work was supported by the National Natural Science Foundation of China under Grants Nos. 11704281, 11647042, 11674033, 11474026, 11604012, the Fundamental Research Funds for the Central Universities under Grant No. 2015KJJCA01, and the China Postdoctoral Science Foundation under Grant No. 2018M631438.


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Authors and Affiliations

  1. 1.Department of Applied Physics, School of ScienceTianjin Polytechnic UniversityTianjinChina
  2. 2.Applied Optics Beijing Area Major Laboratory, Department of PhysicsBeijing Normal UniversityBeijingChina
  3. 3.NAAM-Research Group, Department of Mathematics, Faculty of ScienceKing Abdulaziz UniversityJeddahSaudi Arabia
  4. 4.School of Mathematics and PhysicsUniversity of Science and Technology BeijingBeijingChina

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