Entangling a Series of Trapped Ions by Moving Cavity Bus

ZHANG Miao; JIA Huan-Yu; WEI Lian-Fu

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Entangling a Series of Trapped Ions by Moving Cavity Bus

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@@ Entangling multiple qubits is one of the central tasks of quantum information processing.We propose an approach to entangle a number of cold ions (individually trapped in a string of microtraps) by a moved cavity.The cavity is pushed to include the ions one by one with a uniform velocity and thus the information stored in former ions could be transferred to the latter ones by such a moving cavity bus.Since the positions of the trapped ions are precisely located, the strengths and durations of the ion-cavity interactions can be exactly controlled.As a consequence, by properly setting the relevant parameters, typical multi-ion entangled states, e.g., W state for 10 ions, could be deterministically generated.The feasibility of the proposal is also discussed.

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《中国物理快报：英文版》 |2011年第6期|160-163|共4页
作者
ZHANG Miao; JIA Huan-Yu; WEI Lian-Fu;
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Quantum Optoelectronics Laboratory, School of Physics and Technology, Southwest Jiaotong University, Chengdu 610031;

Quantum Optoelectronics Laboratory, School of Physics and Technology, Southwest Jiaotong University, Chengdu 610031;

Quantum Optoelectronics Laboratory, School of Physics and Technology, Southwest Jiaotong University, Chengdu 610031;

State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275;

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Entangling a Series of Trapped Ions by Moving Cavity Bus

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