中国物理B ›› 2023, Vol. 32 ›› Issue (8): 83302-083302.doi: 10.1088/1674-1056/acd0a6

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Facilitation of controllable excitation in Rydberg atomic ensembles

Han Wang(王涵) and Jing Qian(钱静)   

  1. State Key Laboratory of Precision Spectroscopy, Department of Physics, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
  • 收稿日期:2023-03-01 修回日期:2023-04-18 接受日期:2023-04-27 发布日期:2023-07-27
  • 通讯作者: Jing Qian E-mail:jqian1982@gmail.com
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos.12174106 and 11474094) and the Science and Technology Commission of Shanghai Municipality (Grant No.18ZR1412800).

Facilitation of controllable excitation in Rydberg atomic ensembles

Han Wang(王涵) and Jing Qian(钱静)   

  1. State Key Laboratory of Precision Spectroscopy, Department of Physics, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China
  • Received:2023-03-01 Revised:2023-04-18 Accepted:2023-04-27 Published:2023-07-27
  • Contact: Jing Qian E-mail:jqian1982@gmail.com
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos.12174106 and 11474094) and the Science and Technology Commission of Shanghai Municipality (Grant No.18ZR1412800).

摘要: Strongly-interacting Rydberg atomic ensembles have shown intense collective excitation effects due to the inclusion of single Rydberg excitation shared by multiple atoms in the ensemble. In this paper we investigate a counter-intuitive Rydberg excitation facilitation with a strongly-interacting atomic ensemble in the strong probe-field regime, which is enabled by the role of a control atom nearby. Differing from the case of a single ensemble, we show that, the control atom's excitation adds to a second two-photon transition onto the doubly-excited Rydberg state, arising an excitation facilitation for the ensemble atoms. Our numerical studies depending on the method of quantum Monte Carlo wave function, exhibit the observation constraints of this excitation facilitation effect under practical experimental conditions. The results obtained can provide a flexible control for the excitation of Rydberg atomic ensembles and participate further uses in developing mesoscopic Rydberg gates for multiqubit quantum computation.

关键词: excitation facilitation, Rydberg atom, Monte Carlo wave function, many-body system

Abstract: Strongly-interacting Rydberg atomic ensembles have shown intense collective excitation effects due to the inclusion of single Rydberg excitation shared by multiple atoms in the ensemble. In this paper we investigate a counter-intuitive Rydberg excitation facilitation with a strongly-interacting atomic ensemble in the strong probe-field regime, which is enabled by the role of a control atom nearby. Differing from the case of a single ensemble, we show that, the control atom's excitation adds to a second two-photon transition onto the doubly-excited Rydberg state, arising an excitation facilitation for the ensemble atoms. Our numerical studies depending on the method of quantum Monte Carlo wave function, exhibit the observation constraints of this excitation facilitation effect under practical experimental conditions. The results obtained can provide a flexible control for the excitation of Rydberg atomic ensembles and participate further uses in developing mesoscopic Rydberg gates for multiqubit quantum computation.

Key words: excitation facilitation, Rydberg atom, Monte Carlo wave function, many-body system

中图分类号:  (Multiphoton ionization and excitation to highly excited states (e.g., Rydberg states))

  • 33.80.Rv
32.80.Qk (Coherent control of atomic interactions with photons) 05.10.Ln (Monte Carlo methods) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))