Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential

doi:10.1088/1674-1056/19/3/030310

中国物理B ›› 2010, Vol. 19 ›› Issue (3): 30310-030310.doi: 10.1088/1674-1056/19/3/030310

Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential

赖慧芳¹, 蔡十华¹, 王资生¹, 嵇英华²

(1)College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China; (2)College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China;Key Laboratory of Optoelectronic and Telecommunication of Jiangxi, Nanchang 330022, China

收稿日期:2009-07-06 修回日期:2009-07-19 出版日期:2010-03-15 发布日期:2010-03-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No.~10864002).

Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential

Ji Ying-Hua(嵇英华)^a)b)†, Lai Hui-Fang(赖慧芳)^a), Cai Shi-Hua(蔡十华)^a), and Wang Zi-Sheng(王资生)^a)

^a College of Physics and Communication Electronics, Jiangxi Normal University, Nanchang 330022, China; ^b Key Laboratory of Optoelectronic and Telecommunication of Jiangxi, Nanchang 330022, China

Received:2009-07-06 Revised:2009-07-19 Online:2010-03-15 Published:2010-03-15
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No.~10864002).

摘要/Abstract

摘要： A scheme is proposed to controll the decoherence of three-level rf-SQUID qubit with asymmetric potential by designing an external electric circuit for superconductive flux qubit. The results show that it may not only raise the gate speed but also extend decoherence time for a three-level structure.

Abstract: A scheme is proposed to controll the decoherence of three-level rf-SQUID qubit with asymmetric potential by designing an external electric circuit for superconductive flux qubit. The results show that it may not only raise the gate speed but also extend decoherence time for a three-level structure.

Key words: gate speed, quantum NOT gates, decoherence time, controll

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

03.67.Lx

85.25.Dq (Superconducting quantum interference devices (SQUIDs))

嵇英华, 赖慧芳, 蔡十华, 王资生. Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential[J]. 中国物理B, 2010, 19(3): 30310-030310.

Ji Ying-Hua(嵇英华), Lai Hui-Fang(赖慧芳), Cai Shi-Hua(蔡十华), and Wang Zi-Sheng(王资生). Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential[J]. Chin. Phys. B, 2010, 19(3): 30310-030310.

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Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential

Controlled decoherence of three-level rf-SQUID qubit with asymmetric potential

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