国家自然科学基金(s10775076)

作品数：3被引量：29H指数：3
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An N/4 fixed-point duality quantum search algorithm被引量：8
《Science China(Physics,Mechanics & Astronomy)》2010年第9期1765-1768,共4页HAO Liang1,LIU Dan2 & LONG GuiLu1,3 1Key Laboratory for Atomic and Molecular NanoSciences and Department of Physics,Tsinghua University,Beijing 100084,China 2School of Sciences,Dalian Nationalities University,Dalian 116600,China 3Tsinghua National Laboratory for Information Science and Technology,Beijing 100084,China 
supported by the National Natural Science Foundation of China (Grant Nos 10775076 and 10874098);the SRFPD Program in the Ministry of Education of China (Grant No 20060003048);the National Basic Research Program of China (Grant No 2006CB921106);Educational Commission of Liaoning Province of China (Grant No 2008130)
Here a fixed-point duality quantum search algorithm is proposed.This algorithm uses iteratively non-unitary operations and measurements to search an unsorted database.Once the marked item is found,the algorithm stops ...
关键词：FIXED-POINT SEARCH ALGORITHM DUALITY quantum COMPUTING the N4 DUALITY SEARCH ALGORITHM 
Eavesdropping in a quantum secret sharing protocol based on Grover algorithm and its solution被引量：20
《Science China(Physics,Mechanics & Astronomy)》2010年第3期491-495,共5页HAO Liang1, LI JunLin1 & LONG GuiLu1,2 1Key Laboratory for Atomic and Molecular NanoSciences and Department of Physics, Tsinghua University, Beijing 100084, China 2Tsinghua National Laboratory for Information Science and Technology, Beijing 100084, China 
supported by the National Natural Science Foundation of China (GrantNos. 10775076 and 60635040);the National Basic Research Program of China (Grant No. 2006CB921106);the SRFPD Program of Education Ministry of China
A detailed analysis has showed that the quantum secret sharing protocol based on the Grover algorithm (Phys Rev A, 2003, 68: 022306) is insecure. A dishonest receiver may obtain the full information without being dete...
关键词：QUANTUM SECRET sharing Grover ALGORITHM QUANTUM CRYPTOGRAPHY QUANTUM search ALGORITHM 
Simulation of the four-body interaction in a nuclear magnetic resonance quantum information processor被引量：5
《Chinese Science Bulletin》2009年第22期4262-4265,共4页LIU WenZhang ZHANG JingFu LONG GuiLu 
Supported by the National Natural Science Foundation of China (Grant Nos. 10775076, 10874098);National Basic Research Program of China (Grant Nos. 2006CB921106, 2009CB929402);Specialized Research Fund for the Doctoral Program of Education Ministry of China (Grant No. 20060003048)
The four-body interaction plays an important role in many-body systems, and it can exhibit interesting phase transition behaviors. In this letter, we report the experimental demonstration of a four-body interaction in...
关键词：信息处理器 相互作用 核磁共振 量子位 模拟 多体系统 相变行为 选择激发 
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