Chin. Phys. Lett.  2008, Vol. 25 Issue (1): 27-30    DOI:
Original Articles |
Scheme for Implementing an N-Qubit Phase Gate via Selective Atom--Field Interaction with Cavity Quantum Electrodynamics
SHAO Xiao-Qiang1;JIN Xing-Ri1;ZHU Ai-Dong1,2;ZHANG Shou1,2;YEON
Kyu-Hwang3
1Department of Physics, College of Science, Yanbian University, Yanji 133002 2Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 1500013BK21 Program Physics & Department of Physics, College of Natural Science, Chungbuk National University, Cheonju, Chungbuk 361-763, Republic of Korea
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SHAO Xiao-Qiang, JIN Xing-Ri, ZHU Ai-Dong et al  2008 Chin. Phys. Lett. 25 27-30
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Abstract

A scheme for implementing a two-qubit phase gate with atoms sent through a high-Q optical cavity is proposed by choosing nonidentical coupling constants between the atoms and cavity. The atomic spontaneous emission can be suppressed due to the large atom--field detuning. Moreover, the scheme can be generalized to implement an N-qubit phase gate and the gating time
does not change with an increase of the number of qubits.

Keywords: 03.67.Lx     
Received: 30 August 2007      Published: 27 December 2007
PACS:  03.67.Lx (Quantum computation architectures and implementations)  
  42.50  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I1/027
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SHAO Xiao-Qiang
JIN Xing-Ri
ZHU Ai-Dong
ZHANG Shou
YEONKyu-Hwang
[1] Grover L K 1998 Phys. Rev. Lett. 80 4329
[2]You L, Yi X X and Su X H 2003 Phys. Rev. A 67032308
[3]Yang C P, Chu S I and Han S 2004 Phys. Rev. A 70 044303
[4]Liu Q and Ye L 2007 Chin. Phys. Lett. 24599
[5]Zheng S B 2005 Phys. Rev. A 71 062335
[6]Nielsen M A and Chuang I L 2000 Quantum Computationand Quantum Information (Cambridge: Cambridge University Press)
[7]Shao X Q, Wen J J, Jin X R, Zhu A D, Zhang S and Yeon K H 2007 Chin. Phys. Lett. 24 2730
[8]Xiao Y F, Zou X B and Guo G C 2007 Phys. Rev. A 75 014302
[9]Zou X B, Xiao Y F, Li S B, Yang Y and Guo G C2007 Phys. Rev. A 75 064301
[10]Xiao Y F, Zou X B and Guo G C 2007 Phys. Rev. A 75 012310
[11]Zou X B, Dong Y L and Guo G C 2006 Phys. Rev. A 74032325
[12]Poyatos J F and Cirac J I 1997 Phys. Rev. Lett. 78032325
[13]Osnaghi S, Bertet P, Auffeves A, Maioli P, Brune M,Raimond J M and Haroche S 2001 Phys. Rev. Lett. 87 037902
[14]Maunz P et al 2004 Nature (London) 428 50
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