Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

doi:10.1088/1674-1056/ac3221

中国物理B ›› 2022, Vol. 31 ›› Issue (2): 27802-027802.doi: 10.1088/1674-1056/ac3221

Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

Hua-Jun Chen(陈华俊)^†, Peng-Jie Zhu(朱鹏杰), Yong-Lei Chen(陈咏雷), and Bao-Cheng Hou(侯宝成)

School of Mechanics and Photoelectric Physics, Anhui University of Science and Technology, Huainan 232001, China

收稿日期:2021-07-07 修回日期:2021-09-19 接受日期:2021-10-22 出版日期:2022-01-13 发布日期:2022-01-13
通讯作者: Hua-Jun Chen E-mail:chenphysics@126.com
基金资助:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11804004 and 11647001), the China Postdoctoral Science Foundation (Grant No. 2020M681973), and Anhui Provincial Natural Science Foundation, China (Grant No. 1708085QA11).

Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

Hua-Jun Chen(陈华俊)^†, Peng-Jie Zhu(朱鹏杰), Yong-Lei Chen(陈咏雷), and Bao-Cheng Hou(侯宝成)

School of Mechanics and Photoelectric Physics, Anhui University of Science and Technology, Huainan 232001, China

Received:2021-07-07 Revised:2021-09-19 Accepted:2021-10-22 Online:2022-01-13 Published:2022-01-13
Contact: Hua-Jun Chen E-mail:chenphysics@126.com
Supported by:
This work was supported by the National Natural Science Foundation of China (Grant Nos. 11804004 and 11647001), the China Postdoctoral Science Foundation (Grant No. 2020M681973), and Anhui Provincial Natural Science Foundation, China (Grant No. 1708085QA11).

摘要/Abstract

摘要： We investigate theoretically Rabi-like splitting and Fano resonance in absorption spectra of quantum dots (QDs) based on a hybrid QD-semiconducting nanowire/superconductor (SNW/SC) device mediated by Majorana fermions (MFs). Under the condition of pump on-resonance and off-resonance, the absorption spectrum experiences the conversion from Fano resonance to Rabi-like splitting in different parametric regimes. In addition, the Fano resonances are accompanied by the rapid normal phase dispersion, which will indicate the coherent optical propagation. The results indicate that the group velocity index is tunable with controlling the interaction between the QD and MFs, which can reach the conversion between the fast- and slow-light. Fano resonance will be another method to detect MFs and our research may indicate prospective applications in quantum information processing based on the hybrid QD-SNW/SC devices.

关键词: majorana fermions, Fano resonance, slow and fast light, hybrid semiconducting/superconductor device

Abstract: We investigate theoretically Rabi-like splitting and Fano resonance in absorption spectra of quantum dots (QDs) based on a hybrid QD-semiconducting nanowire/superconductor (SNW/SC) device mediated by Majorana fermions (MFs). Under the condition of pump on-resonance and off-resonance, the absorption spectrum experiences the conversion from Fano resonance to Rabi-like splitting in different parametric regimes. In addition, the Fano resonances are accompanied by the rapid normal phase dispersion, which will indicate the coherent optical propagation. The results indicate that the group velocity index is tunable with controlling the interaction between the QD and MFs, which can reach the conversion between the fast- and slow-light. Fano resonance will be another method to detect MFs and our research may indicate prospective applications in quantum information processing based on the hybrid QD-SNW/SC devices.

Key words: majorana fermions, Fano resonance, slow and fast light, hybrid semiconducting/superconductor device

中图分类号: (Quantum dots)

78.67.Hc

42.50.-p (Quantum optics) 42.50.Gy (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

Hua-Jun Chen(陈华俊), Peng-Jie Zhu(朱鹏杰), Yong-Lei Chen(陈咏雷), and Bao-Cheng Hou(侯宝成). Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device[J]. 中国物理B, 2022, 31(2): 27802-027802.

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Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

Majorana fermions induced fast- and slow-light in a hybrid semiconducting nanowire/superconductor device

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