中国物理B ›› 2021, Vol. 30 ›› Issue (8): 80305-080305.doi: 10.1088/1674-1056/abfccb

所属专题: SPECIAL TOPIC — Quantum computation and quantum simulation

• • 上一篇    下一篇

Optimized pulse for stimulated Raman adiabatic passage on noisy experimental platform

Zhi-Ling Wang(王志凌), Leiyinan Liu(刘雷轶男), and Jian Cui(崔健)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • 收稿日期:2021-02-03 修回日期:2021-04-15 接受日期:2021-04-29 出版日期:2021-07-16 发布日期:2021-08-09
  • 通讯作者: Jian Cui E-mail:jiancui@buaa.edu.cn
  • 基金资助:
    Project supported by the Natonal Natural Science Foundation of China (Grant No. 11904018). This research was supported by the high performance computing (HPC) resources at Beihang University and the college students' innovation and entrepreneurship training program.

Optimized pulse for stimulated Raman adiabatic passage on noisy experimental platform

Zhi-Ling Wang(王志凌), Leiyinan Liu(刘雷轶男), and Jian Cui(崔健)   

  1. School of Physics, Beihang University, Beijing 100191, China
  • Received:2021-02-03 Revised:2021-04-15 Accepted:2021-04-29 Online:2021-07-16 Published:2021-08-09
  • Contact: Jian Cui E-mail:jiancui@buaa.edu.cn
  • Supported by:
    Project supported by the Natonal Natural Science Foundation of China (Grant No. 11904018). This research was supported by the high performance computing (HPC) resources at Beihang University and the college students' innovation and entrepreneurship training program.

摘要: Stimulated Raman adiabatic passage (STIRAP) is an important technique to manipulate quantum states in quantum simulation and quantum computation. The transformation fidelity is limited in reality due to experimental imperfections. After systematically calculating the influence of dissipation caused by thermal fluctuations and instantaneous decay of the intermediate state, we find optimized control pulses of Rydberg atom in optical tweezer to increase the STIRAP fidelity via optimal control method. All constraints of currently available control lasers have been taken into account. The transition error can be further depressed when control lasers with shorter rise time and accordingly proper total evolution time are applied. Finally, the robustness of the control pulses with respect to random deviations between the theoretical pulse shape and the implemented ones is also enhanced by additional rounds of optimizations based on ensemble averaged fidelity.

关键词: STIRAP, dissipation, optimal control, Rydberg atom

Abstract: Stimulated Raman adiabatic passage (STIRAP) is an important technique to manipulate quantum states in quantum simulation and quantum computation. The transformation fidelity is limited in reality due to experimental imperfections. After systematically calculating the influence of dissipation caused by thermal fluctuations and instantaneous decay of the intermediate state, we find optimized control pulses of Rydberg atom in optical tweezer to increase the STIRAP fidelity via optimal control method. All constraints of currently available control lasers have been taken into account. The transition error can be further depressed when control lasers with shorter rise time and accordingly proper total evolution time are applied. Finally, the robustness of the control pulses with respect to random deviations between the theoretical pulse shape and the implemented ones is also enhanced by additional rounds of optimizations based on ensemble averaged fidelity.

Key words: STIRAP, dissipation, optimal control, Rydberg atom

中图分类号:  (Quantum computation architectures and implementations)

  • 03.67.Lx
03.67.Pp (Quantum error correction and other methods for protection against decoherence) 42.50.Dv (Quantum state engineering and measurements) 03.67.-a (Quantum information)