Three-qubit quantum-gate operation with an SQUID in a cavity

doi:10.1088/1674-1056/21/6/064205

中国物理B ›› 2012, Vol. 21 ›› Issue (6): 64205-064205.doi: 10.1088/1674-1056/21/6/064205

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

Three-qubit quantum-gate operation with an SQUID in a cavity

石惠敏, 於亚飞, 张智明

Laboratory of Nanophotonic Functional Materials and Devices, Laboratory of Quantum Information Technology, South China Normal University, Guangzhou 510006, China

收稿日期:2011-10-14 修回日期:2011-11-25 出版日期:2012-05-01 发布日期:2012-05-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 60978009), the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91121023), and the National Basic Research Program of China (Grant No. 2011CBA00200).

Three-qubit quantum-gate operation with an SQUID in a cavity

Shi Hui-Min(石惠敏), Yu Ya-Fei(於亚飞), and Zhang Zhi-Ming(张智明)^†

Laboratory of Nanophotonic Functional Materials and Devices, Laboratory of Quantum Information Technology, South China Normal University, Guangzhou 510006, China

Received:2011-10-14 Revised:2011-11-25 Online:2012-05-01 Published:2012-05-01
Contact: Zhang Zhi-Ming E-mail:zmzhang@scnu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 60978009), the Major Research Plan of the National Natural Science Foundation of China (Grant No. 91121023), and the National Basic Research Program of China (Grant No. 2011CBA00200).

摘要/Abstract

摘要： We propose a method of realizing a three-qubit quantum gate with a superconducting quantum interference device (SQUID) in a cavity. In this proposal, the gate operation involves the SQUID ground-states and the Fock states of cavity modes b and ĉ. The two field-modes act as the controlling qubits, and the two SQUID states form the target qubit. Since only the metastable lower levels are involved in the gate operation, the gate is not affected by the SQUID decay rates.

关键词: SQUID, quantum gate, C²-Phase gate, C²-Not gate

Abstract: We propose a method of realizing a three-qubit quantum gate with a superconducting quantum interference device (SQUID) in a cavity. In this proposal, the gate operation involves the SQUID ground-states and the Fock states of cavity modes b and ĉ. The two field-modes act as the controlling qubits, and the two SQUID states form the target qubit. Since only the metastable lower levels are involved in the gate operation, the gate is not affected by the SQUID decay rates.

Key words: SQUID, quantum gate, C²-Phase gate, C²-Not gate

中图分类号: (Quantum optics)

42.50.-p

42.50.Ct (Quantum description of interaction of light and matter; related experiments) 03.67.-a (Quantum information) 03.67.Lx (Quantum computation architectures and implementations)

石惠敏, 於亚飞, 张智明. Three-qubit quantum-gate operation with an SQUID in a cavity[J]. 中国物理B, 2012, 21(6): 64205-064205.

Shi Hui-Min(石惠敏), Yu Ya-Fei(於亚飞), and Zhang Zhi-Ming(张智明) . Three-qubit quantum-gate operation with an SQUID in a cavity[J]. Chin. Phys. B, 2012, 21(6): 64205-064205.

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Three-qubit quantum-gate operation with an SQUID in a cavity

Three-qubit quantum-gate operation with an SQUID in a cavity

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