Controlling group velocity in a superconductive quantum circuit

doi:10.1088/1674-1056/21/10/104205

中国物理B ›› 2012, Vol. 21 ›› Issue (10): 104205-104205.doi: 10.1088/1674-1056/21/10/104205

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Controlling group velocity in a superconductive quantum circuit

邱田会, 杨国建

Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China

收稿日期:2012-03-05 修回日期:2012-04-20 出版日期:2012-09-01 发布日期:2012-09-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 111174040) and the Fundamental Research Funds for the Central Universities.

Controlling group velocity in a superconductive quantum circuit

Qiu Tian-Hui (邱田会), Yang Guo-Jian (杨国建)

Department of Physics and Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China

Received:2012-03-05 Revised:2012-04-20 Online:2012-09-01 Published:2012-09-01
Contact: Yang Guo-Jian E-mail:yanggj@bnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 111174040) and the Fundamental Research Funds for the Central Universities.

摘要/Abstract

摘要： We investigate the controllable group velocity of a microwave probe field in a superconductive quantum circuit (SQC) pumped by microwave fields, and the use of such a SQC function as an artificial Λ-type three-level atom. The exchange between the subluminal and the superluminal states of the probe field can be realized simply by sweeping the pumping intensity, and the superluminal state is usually realized with a lower absorption. This work is one of the efforts to extend the study of electromagnetically induced transparency and its related properties from the lightwave band to the microwave band.

关键词: subluminal, superluminal, superconductive quantum circuit, group velocity

Abstract: We investigate the controllable group velocity of a microwave probe field in a superconductive quantum circuit (SQC) pumped by microwave fields, and the use of such a SQC function as an artificial Λ-type three-level atom. The exchange between the subluminal and the superluminal states of the probe field can be realized simply by sweeping the pumping intensity, and the superluminal state is usually realized with a lower absorption. This work is one of the efforts to extend the study of electromagnetically induced transparency and its related properties from the lightwave band to the microwave band.

Key words: subluminal, superluminal, superconductive quantum circuit, group velocity

中图分类号: (Effects of atomic coherence on propagation, absorption, and Amplification of light; electromagnetically induced transparency and Absorption)

42.50.Gy

85.25.-j (Superconducting devices)

邱田会, 杨国建. Controlling group velocity in a superconductive quantum circuit[J]. 中国物理B, 2012, 21(10): 104205-104205.

Qiu Tian-Hui (邱田会), Yang Guo-Jian (杨国建). Controlling group velocity in a superconductive quantum circuit[J]. Chin. Phys. B, 2012, 21(10): 104205-104205.

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Controlling group velocity in a superconductive quantum circuit

Controlling group velocity in a superconductive quantum circuit

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