Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics

SHAO Xiao-Qiang; JIN Xing-Ri; ZHU Ai-Dong; ZHANG Shou; YEON Kyu-Hwang

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Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics

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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.

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《中国物理快报：英文版》 |2008年第1期|27-30|共4页
作者
SHAO Xiao-Qiang; JIN Xing-Ri; ZHU Ai-Dong; ZHANG Shou; YEON Kyu-Hwang;
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作者单位

Department of Physics,College of Science,Yanbian University,Yanji 133002;

Department of Physics,College of Science,Yanbian University,Yanji 133002;

Department of Physics,College of Science,Yanbian University,Yanji 133002;

Center for the Condensed-Matter Science and Technology,Harbin Institute of Technology,Harbin 150001;

Department of Physics,College of Science,Yanbian University,Yanji 133002;

Center for the Condensed-Matter Science and Technology,Harbin Institute of Technology,Harbin 150001;

BK21 Program Physics & Department of Physics,College of Natural Science,Chungbuk National University, Cheonju,Chungbuk 361-763,Republic of Korea;

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Scheme for Implementing an N-Qubit Phase Gate via Selective Atom-Field Interaction with Cavity Quantum Electrodynamics

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