%0 Journal Article
%T Multicontrol Remote Single Qubit Unitary Transformation with Greenberger-Horne-Zeilinger State<br>用Greenberger-Horne-Zeilinger态作量子信道实现多点控制的远程单比特幺正变换
%A Chen Li-bing
%A Liu Yu-hua
%A Lu Hong
%A Jin Rui-bo
%A <br>陈立冰
%A 刘玉华
%A 路洪
%A 金锐博
%J 光子学报
%D 2008
%I 
%X Utilizing the entanglement property of Greenberger-Horne-Zeilinger (GHZ) state, a theoretical scheme to realize multicontrol remote single qubit unitary transformation is presented. In the present scheme, one party (Alice) can perform a unitary transformation on remote quantum system (Bob), in which the full structure of the unitary transformation is in a sense split and controlled locally by the two parties. By adjusting the measurement basis, the third (Cindy) can modulate the entanglement between Alice and Bob to control the probability of successful implementation. The communication between Cindy and Alice (Bob) is also controlled by Cindy in quantum way.
%K Quantum information
%K Remote unitary transformation
%K GHZ state
%K Implementation<br>量子信息
%K 远程幺正变换
%K GHZ态
%K 操纵
%K Quantum
%K information
%K Remote
%K unitary
%K transformation
%K GHZ
%K state
%K Implementation
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=9F6139E34DAA109F9C104697BF49FC39&aid=5B4B0A79490C3198B285AE4F838B6513&yid=67289AFF6305E306&vid=42425781F0B1C26E&iid=CA4FD0336C81A37A&sid=C29816B2656377A7&eid=E0F6F365E4766526&journal_id=1004-4213&journal_name=光子学报&referenced_num=0&reference_num=20