International Journal of Theoretical Physics

, Volume 57, Issue 2, pp 570–581 | Cite as

Robust Deterministic Controlled Phase-Flip Gate and Controlled-Not Gate Based on Atomic Ensembles Embedded in Double-Sided Optical Cavities

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Abstract

We first propose a scheme for controlled phase-flip gate between a flying photon qubit and the collective spin wave (magnon) of an atomic ensemble assisted by double-sided cavity quantum systems. Then we propose a deterministic controlled-not gate on magnon qubits with parity-check building blocks. Both the gates can be accomplished with 100% success probability in principle. Atomic ensemble is employed so that light-matter coupling is remarkably improved by collective enhancement. We assess the performance of the gates and the results show that they can be faithfully constituted with current experimental techniques.

Keywords

Quantum information processing Quantum logic gates Cavity quantum electrodynamics Quantum computation 

Notes

Acknowledgements

This work was supported by the Scientific Research Foundation of Shanxi Institute of Technology No. 201706001, and the National Natural Science Foundation of China under Grants No. 11604190 and No. 61465013.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2017

Authors and Affiliations

  • A-Peng Liu
    • 1
  • Liu-Yong Cheng
    • 2
  • Qi Guo
    • 3
  • Shou Zhang
    • 4
  1. 1.Shanxi Institute of TechnologyYangquanChina
  2. 2.School of Physics and Information EngineeringShanxi Normal UniversityLinfenChina
  3. 3.College of Physics and Electronics EngineeringShanxi UniversityTaiyuanChina
  4. 4.Department of Physics, College of ScienceYanbian UniversityYanjiChina

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