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Pairwise Quantum Correlations for Superpositions of Dicke States: 《Communications in Theoretical Physics》2012年第5期771-779,共9页席政军熊恒娜李永明王晓光; Supported by the Natural Science Foundation of China under Grant Nos.11025527,10935010,and 60873119;National Foundation Research Program of China under Grant No.2012CB921602;the Fundamental Research Funds for the Central Universities,and as well as the Superior Dissertation Foundation of Shannxi Normal University under Grant No.S2009YB03;the Higher School Doctoral Subject Foundation of Ministry of Education of China under Grant No.200807180005; Pairwise correlation is really an important property for multi-qubit states.For the two-qubit X states extracted from Dicke states and their superposition states,we obtain a compact expression of the quantum discord b...; 关键词：quantum correlation quantum discord ENTANGLEMENT Dicke states

Entanglement of Superpositions of Orthogonal Maximally Entangled States: 《Chinese Physics Letters》2010年第9期31-33,共3页张道花周端陆范桁; Supported by the National Natural Science Foundation of China under Grant Nos 10974247, 10775176 and 10975181, and the National Basic Research Program of China under Grant No 2010CB922904.; We study the entanglement properties of the superposed state of orthogonal maximally entangled states. It is shown that the superposed state is maximally entangled and the superposed state is separable. The relation b...

Superpositions of Laguerre-Gaussian Beams in Strongly Nonlocal Left-handed Materials: 《Communications in Theoretical Physics》2010年第4期749-754,共6页钟卫平 Milivoj Beli 王丽杨; Supported by the Science Research Foundation of Shunde Polytechnic (2008-KJ06), China;Work at the Texas A&M University at Qatar is supported by the NPRP 25-6-7-2 project with the Qatar National Research Foundation; We present beam solutions of the strongly nonlocal nonlinear Schrodinger equation in left-handed mate- rims （LHMs）. Different Laguerre-Ganssian （LG） necklace beams, such as symmetric and asymmetric single layer an...; 关键词：Laguerre-Gausssian beam the strongly nonlocal nonlinear left-handed material

Generation of superpositions of coherent states for an atomic sample in cavity QED: 《Chinese Physics B》2009年第1期195-198,共4页郑仕标; Project supported by the National Natural Science Foundation of China (Grant No 10674025);the Doctoral Foundation of the Ministry of Education of China (Grant No 20070386002); This paper proposes a scheme for generation of superpositions of coherent states of the effective bosonic mode in a collection of atoms. In the scheme an atomic sample interacts with a slightly detuned cavity mode and...; 关键词：superposition of coherent states atomic sample cavity QED

Efficient Scheme for Macroscopic Superpositions and Entanglement of High-Order Squeezed Vacuum States in Cavity QED: 《Communications in Theoretical Physics》2008年第5期1187-1190,共4页CHEN Chang-Yong; The project supported by National Natural Science Foundation of China under Grant Nos.10774042,10474118 and 1047200;the Science Research Fund of Hunan Institute of Humanity and Science and Technology under Grant No.2005A008; We propose an etticient scheme for generating the macroscopic superpositions and the entanglement between the high-order squeezed vacuum states by considering the multi-photon interaction of N two-level atoms in a cav...; 关键词：multiparty entanglement cavity QED multi-photon interaction

Multipartite entanglement in the interaction system between a single-mode microwave cavity field and superconducting charge qubits: 《Chinese Physics B》2007年第6期1615-1618,共4页施振刚谌雄文朱喜香宋克慧; Project supported by Hunan Provincial Natural Science Foundation of China （Grant No 06jj50014）.; This paper proposes a method of generating multipartite entanglement through using d.c. superconducting quan- tum interference devices （SQUID） inside a standing wave cavity. In this scheme, the d.c. SQUID works in t...; 关键词：superconducting charge qubits standing wave cavity Schrodinger cat states superpositions of mesoscopic quantum states

Generation of Superpositions of Two-Mode Coherent States for the Motion of Two Trapped Ions: 《Communications in Theoretical Physics》2005年第6X期1071-1072,共2页ZHENG Shi-Biao; 教育部霍英东教育基金，the National Natural Science Foundation of China under，Funds from Fuzhou University; We propose a method for the generation of superpositions of two-mode coherent states for the center-of-mass and relative vibrational modes of two trapped ions. In the scheme the ions are driven by a single travelling-...; 关键词：superposition of two-mode coherent states trapped ion vibrational mode

Generation of Superpositions of Coherent Interaction States Along a Straight Line via Raman Interaction: 《Communications in Theoretical Physics》2005年第6X期1073-1075,共3页YANG Zhen-Biao; We present an alternative scheme for preparing the superpositions of coherent states along a straight line of a cavity field using degenerate atom-cavity field Raman interaction. In the scheme, a collection of A-type ...; 关键词：coherent states SUPERPOSITIONS straight line Raman interaction

Preparation of Motional Mesoscopic Superpositions of Squeezed Coherent States of N Trapped Ions: 《Communications in Theoretical Physics》2005年第4期727-731,共5页YANGWen-Xing XIEXiao-Tao LIJia-Hua CHENChang-Yong; 国家重点基础研究发展计划(973计划)，国家自然科学基金; A scheme is proposed to generate arbitrary, discrete superpostions of squeezed coherent states of the squeezed center of mass of N trapped ions along a straight line in phase space. The scheme is based on a resonant b...; 关键词：quantum state engineering squeezed coherent state coherent state

Dense coding scheme using superpositions of Bell-states and its NMR implementation被引量：19: 《Science China(Physics,Mechanics & Astronomy)》2005年第1期57-67,共11页ZHANG Jingfu, XIE Jingyi, DENG Zhiwei & LU Zhiheng Key Laboratory for Quantum Information and Measurements, Department of Physics, Tsinghua University, Beijing 100084, China Center for Quantum Information, Tsinghua University, Beijing 100084, China Department of Materials Science and Engineering, Beijing Normal University, Beijing 100875, China Testing and Analytical Center, Beijing Normal University, Beijing 100875, China Department of Physics, Beijing Normal University, Beijing 100875, China; We are grateful to Professor Long Guilu and Mr.Liu Xiaoshu for helpful discussions.This work was supported by the National Natural Science Foundation of China(Grant No.10374010);the China Postdoctoral Science Foundation.; Dense coding using superpositions of Bell-states is proposed. The generalized Grover's algorithm is used to prepare the initial entangled states, and the reverse process of the quantum algorithm is used to determine t...; 关键词：DENSE coding SUPERPOSITIONS of Bell-states GENERALIZED Grover's algorithm NUCLEAR magnetic res-onance QUANTUM computer.

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