中国物理B ›› 2023, Vol. 32 ›› Issue (3): 34201-034201.doi: 10.1088/1674-1056/ac8926

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Fast population transfer with a superconducting qutrit via non-Hermitian shortcut to adiabaticity

Xin-Ping Dong(董新平), Zhi-Bo Feng(冯志波), Xiao-Jing Lu(路晓静), Ming Li(李明), and Zheng-Yin Zhao(赵正印)   

  1. School of Science, Xuchang University, Xuchang 461000, China
  • 收稿日期:2022-06-01 修回日期:2022-07-17 接受日期:2022-08-12 出版日期:2023-02-14 发布日期:2023-02-14
  • 通讯作者: Zhi-Bo Feng E-mail:zbfeng010@163.com
  • 基金资助:
    This work was supported by the Natural Science Foundation of Henan Province (Grant Nos. 212300410388 and 212300410238), the Scientific Research Innovation Team of Xuchang University (Grant No. 2022CXTD005), the National Scientific Research Project Cultivation Fund of Xuchang University (Grant No. 2022GJPY001), the Key Research Project in Universities of Henan Province (Grant No. 23B140010), and the "316" Project Plan of Xuchang University.

Fast population transfer with a superconducting qutrit via non-Hermitian shortcut to adiabaticity

Xin-Ping Dong(董新平), Zhi-Bo Feng(冯志波), Xiao-Jing Lu(路晓静), Ming Li(李明), and Zheng-Yin Zhao(赵正印)   

  1. School of Science, Xuchang University, Xuchang 461000, China
  • Received:2022-06-01 Revised:2022-07-17 Accepted:2022-08-12 Online:2023-02-14 Published:2023-02-14
  • Contact: Zhi-Bo Feng E-mail:zbfeng010@163.com
  • Supported by:
    This work was supported by the Natural Science Foundation of Henan Province (Grant Nos. 212300410388 and 212300410238), the Scientific Research Innovation Team of Xuchang University (Grant No. 2022CXTD005), the National Scientific Research Project Cultivation Fund of Xuchang University (Grant No. 2022GJPY001), the Key Research Project in Universities of Henan Province (Grant No. 23B140010), and the "316" Project Plan of Xuchang University.

摘要: Non-Hermitian dissipation dynamics, capable of turning the conventionally detrimental decoherence effects to useful resources for state engineering, is highly attractive to quantum information processing. In this work, an effective scheme is developed for implementing fast population transfer with a superconducting qutrit via the non-Hermitian shortcut to adiabaticity (STA). We first deal with a Λ-configuration interaction between the qutrit and microwave drivings, in which the dephasing-assisted qubit state inversion requiring an overlarge dephasing rate is constructed non-adiabatically. After introducing a feasible ancillary driving that directly acts upon the qubit states, the target state transfer can be well realized but with an accessible qubit dephasing rate. Moreover, a high fidelity could be numerically obtained in the considered system. The strategy could provide a new route towards the non-Hermitian shortcut operations on superconducting quantum circuits.

关键词: population transfer, superconducting qutrit, non-Hermitian shortcut to adiabaticity

Abstract: Non-Hermitian dissipation dynamics, capable of turning the conventionally detrimental decoherence effects to useful resources for state engineering, is highly attractive to quantum information processing. In this work, an effective scheme is developed for implementing fast population transfer with a superconducting qutrit via the non-Hermitian shortcut to adiabaticity (STA). We first deal with a Λ-configuration interaction between the qutrit and microwave drivings, in which the dephasing-assisted qubit state inversion requiring an overlarge dephasing rate is constructed non-adiabatically. After introducing a feasible ancillary driving that directly acts upon the qubit states, the target state transfer can be well realized but with an accessible qubit dephasing rate. Moreover, a high fidelity could be numerically obtained in the considered system. The strategy could provide a new route towards the non-Hermitian shortcut operations on superconducting quantum circuits.

Key words: population transfer, superconducting qutrit, non-Hermitian shortcut to adiabaticity

中图分类号:  (Optical implementations of quantum information processing and transfer)

  • 42.50.Ex
32.80.Xx (Level crossing and optical pumping) 85.25.-j (Superconducting devices)