Efficient generation of two-dimensional cluster states in cavity QED

doi:10.1088/1674-1056/22/4/040307

Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (4): 40307-040307.doi: 10.1088/1674-1056/22/4/040307

Efficient generation of two-dimensional cluster states in cavity QED

张刚^a, 周建^{b c}, 薛正远^c

a Machinery and Electronics Engineering Institute, West Anhui University, Lu'an 237012, China;
b Anhui Xinhua University, Hefei 230088, China;
c Laboratory of Quantum Information Technology and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China

收稿日期:2012-07-25 修回日期:2012-10-18 出版日期:2013-03-01 发布日期:2013-03-01
基金资助:
Project supported by the National Fundamental Research Program of China (Grant No. 2013CB921804), the National Natural Science Foundation of China (Grant No. 11004065), the Natural Science Foundation of Guangdong Province of China (Grant Nos. 10451063101006312 and S2011040000403), and the Funds of the Education Department of Anhui Province of China (Grant Nos. KJ2010A323, 2010SQRL187, and KJ2012B075).

Efficient generation of two-dimensional cluster states in cavity QED

Zhang Gang (张刚)^a, Zhou Jian (周建)^{b c}, Xue Zheng-Yuan (薛正远)^c

a Machinery and Electronics Engineering Institute, West Anhui University, Lu'an 237012, China;
b Anhui Xinhua University, Hefei 230088, China;
c Laboratory of Quantum Information Technology and School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China

Received:2012-07-25 Revised:2012-10-18 Online:2013-03-01 Published:2013-03-01
Contact: Xue Zheng-Yuan E-mail:xuezhengyuan@yahoo.com.cn
Supported by:
Project supported by the National Fundamental Research Program of China (Grant No. 2013CB921804), the National Natural Science Foundation of China (Grant No. 11004065), the Natural Science Foundation of Guangdong Province of China (Grant Nos. 10451063101006312 and S2011040000403), and the Funds of the Education Department of Anhui Province of China (Grant Nos. KJ2010A323, 2010SQRL187, and KJ2012B075).

摘要/Abstract

摘要： We propose a scheme to achieve a kind of nontrivial multipartite pair-wise controlled phase operation in a cavity QED setup. The operation implemented is of geometrical nature and not sensitive to the thermal state of the cavity. In particular, we are manage to avoid the conventional dispersive coupling so that high speed gate operation is achieved which is very important in view of decoherence. We show that this multipartite pair-wise controlled phase operation makes the generation of two-dimensional cluster states very efficient.

关键词: controlled phase gate, cluster state, cavity QED

Abstract: We propose a scheme to achieve a kind of nontrivial multipartite pair-wise controlled phase operation in a cavity QED setup. The operation implemented is of geometrical nature and not sensitive to the thermal state of the cavity. In particular, we are manage to avoid the conventional dispersive coupling so that high speed gate operation is achieved which is very important in view of decoherence. We show that this multipartite pair-wise controlled phase operation makes the generation of two-dimensional cluster states very efficient.

Key words: controlled phase gate, cluster state, cavity QED

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

03.67.Lx

42.50.Pq (Cavity quantum electrodynamics; micromasers) 42.50.Dv (Quantum state engineering and measurements)

张刚, 周建, 薛正远. Efficient generation of two-dimensional cluster states in cavity QED[J]. Chin. Phys. B, 2013, 22(4): 40307-040307.

Zhang Gang (张刚), Zhou Jian (周建), Xue Zheng-Yuan (薛正远). Efficient generation of two-dimensional cluster states in cavity QED[J]. Chin. Phys. B, 2013, 22(4): 40307-040307.

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Efficient generation of two-dimensional cluster states in cavity QED

Efficient generation of two-dimensional cluster states in cavity QED

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