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

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

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.

Keywords: gate speed quantum NOT gates decoherence time controll

Received: 06 July 2009
Revised: 19 July 2009
Accepted manuscript online:

PACS:	03.67.Lx	(Quantum computation architectures and implementations)
	85.25.Dq	(Superconducting quantum interference devices (SQUIDs))

Fund: Project supported by the National Natural Science Foundation of China (Grant No.~10864002).

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

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