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Chin. Phys. B, 2008, Vol. 17(12): 4388-4395    DOI: 10.1088/1674-1056/17/12/010
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Direct implementation of a scalable non-local multi-qubit controlled phase gate via optical fibers and adiabatic passage

Tang Yao-Xiang, Lin Xiu-Min, Lin Gong-Wei, Chen Li-Bo, Huang Xiu-Hua
School of Physics and Optoelectronics Technology, Fujian Normal University, Fuzhou 350007, China
Abstract  This paper presents a direct implementation scheme of the non-local multi-qubit controlled phase gate by using optical fibers and adiabatic passage. The smaller operation number for implementing the multi-qubit controlled phase gate and needlessness for addressing individually save physical resource and lower the difficulties of experiment. Meanwhile, the scheme is immune from some decoherence effects such as the atomic spontaneous emission and the fibers loss. In principle, it is scalable.
Keywords:  multi-qubit controlled phase gate      adiabatic passage     
Received:  25 February 2008      Published:  20 December 2008
PACS:  03.67.Lx (Quantum computation architectures and implementations)  
  42.50.-p (Quantum optics)  
  42.81.-i (Fiber optics)  
Fund: Project supported by National Natural Science Foundation of China (Grant No 10574022), Natural Science Foundation of Fujian Province of China (Grant Nos 2007J0002 and 2006J0230), and Foundation for Universities in Fujian Province (Grant No 2007F5041).

Cite this article: 

Tang Yao-Xiang, Lin Xiu-Min, Lin Gong-Wei, Chen Li-Bo, Huang Xiu-Hua Direct implementation of a scalable non-local multi-qubit controlled phase gate via optical fibers and adiabatic passage 2008 Chin. Phys. B 17 4388

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