Generation of multiparticle three-dimensional entanglement state via adiabatic passage  

作　　者：吴熙 陈志华 叶明勇 陈悦华 林秀敏 

机构地区：[1]College of Physics and Energy, Fujian Normal University

出　　处：《Chinese Physics B》2013年第4期133-137,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant Nos. 61275215 and 11004033);the National Fundamental Research Program of China (Grant No. 2011CBA00203);the Natural Science Foundation of Fujian Province, China (Grant No. 2010J01002)

摘　　要：A scheme is proposed for generating a multiparticle three-dimensional entangled state by appropriately adiabatic evolutions, where atoms are respectively trapped in separated cavities so that individual addressing is needless. In the ideal case, losses due to the spontaneous transition of an atom and the excitation of photons are efficiently suppressed since atoms are all in ground states and the fields remain in a vacuum state. Compared with the previous proposals, the present scheme reduces its required operation time via simultaneously controlling four classical fields. This advantage would become even more obvious as the number of atoms increases. The experimental feasibility is also discussed. The successful preparation of a high-dimensional multiparticle entangled state among distant atoms provides better prospects for quantum communication and distributed quantum computation.A scheme is proposed for generating a multiparticle three-dimensional entangled state by appropriately adiabatic evolutions, where atoms are respectively trapped in separated cavities so that individual addressing is needless. In the ideal case, losses due to the spontaneous transition of an atom and the excitation of photons are efficiently suppressed since atoms are all in ground states and the fields remain in a vacuum state. Compared with the previous proposals, the present scheme reduces its required operation time via simultaneously controlling four classical fields. This advantage would become even more obvious as the number of atoms increases. The experimental feasibility is also discussed. The successful preparation of a high-dimensional multiparticle entangled state among distant atoms provides better prospects for quantum communication and distributed quantum computation.

关 键 词：multiparticle three-dimensional entanglement state adiabatic evolutions 

分 类 号：O431.2[机械工程—光学工程]