Scheme for implementing quantum logic gates for two atomstrapped in different cavities

doi:10.1088/1674-1056/18/5/025

中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1867-1871.doi: 10.1088/1674-1056/18/5/025

Scheme for implementing quantum logic gates for two atomstrapped in different cavities

林丽华

Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China

收稿日期:2008-08-13 修回日期:2008-09-03 出版日期:2009-05-20 发布日期:2009-05-20
基金资助:
Project supported by the Doctoral Foundation of the Ministry of Education of China (Grant No 20070386002).

Scheme for implementing quantum logic gates for two atoms trapped in different cavities

Lin Li-Hua(林丽华)^†

Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China

Received:2008-08-13 Revised:2008-09-03 Online:2009-05-20 Published:2009-05-20
Supported by:
Project supported by the Doctoral Foundation of the Ministry of Education of China (Grant No 20070386002).

摘要/Abstract

摘要： A scheme is presented for realizing quantum logic gates for two atoms localized in two distant optical cavities. Our scheme works in a regime in which the atom--cavity coupling strength is smaller than the cavity decay rate. Thus the requirement on the quality factor of the cavities is greatly relaxed. Furthermore, the fidelity of our scheme is not affected by detection inefficiency and atomic decay. These advantages are important in view of experiment.

关键词: quantum logic gate, cavity QED, atomic decay

Abstract: A scheme is presented for realizing quantum logic gates for two atoms localized in two distant optical cavities. Our scheme works in a regime in which the atom--cavity coupling strength is smaller than the cavity decay rate. Thus the requirement on the quality factor of the cavities is greatly relaxed. Furthermore, the fidelity of our scheme is not affected by detection inefficiency and atomic decay. These advantages are important in view of experiment.

Key words: quantum logic gate, cavity QED, atomic decay

中图分类号: (Cavity quantum electrodynamics; micromasers)

42.50.Pq

84.30.Sk (Pulse and digital circuits)

林丽华. Scheme for implementing quantum logic gates for two atomstrapped in different cavities[J]. 中国物理B, 2009, 18(5): 1867-1871.

Lin Li-Hua(林丽华). Scheme for implementing quantum logic gates for two atoms trapped in different cavities[J]. Chin. Phys. B, 2009, 18(5): 1867-1871.

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Scheme for implementing quantum logic gates for two atomstrapped in different cavities

Scheme for implementing quantum logic gates for two atoms trapped in different cavities

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