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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 |
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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.
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Received: 06 July 2009
Revised: 19 July 2009
Accepted manuscript online:
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PACS:
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03.67.Lx
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(Quantum computation architectures and implementations)
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85.25.Dq
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(Superconducting quantum interference devices (SQUIDs))
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Fund: Project supported by the National
Natural Science Foundation of China (Grant No.~10864002). |
Cite this article:
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 2010 Chin. Phys. B 19 030310
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