检索结果-南通市图书馆

Chinese Physics Letters 2001年第8期18卷 1072-1073页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou UniversityFuzhou 350002

A scheme is proposed for generating the superpositions of several coherent states in a cavity field with dispersive cavity quantum electrodynamics(QED).In the scheme,a sequence of atoms interact dispersively with the cavity field,connected with a microwave source,and is manipulated by classical fields,followed by state-selective *** this way,the cavity field is collapsed onto a superposition of several coherent states along a straight line with controllable *** scheme provides the possibility for quantum state engineering via coherent-state superpositions in cavity QED for the first time.

关键词： superposition coherent scheme

Network selection based on multiple attribute decision making and group decision making for heterogeneous wireless networks

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The Journal of China Universities of Posts and Telecommunications 2012年第5期19卷 92-98,114页

作者： shi zheng ZHU Qi Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Nanjing 210003 China Key Laboratory on Wideband Wireless Communications and Sensor Network Technology Ministry of Education Nanjing University of Posts and Telecommunications Nanjing 210003 China

One of the key issues for radio resources management is network selection strategy in heterogeneous scenarios. In order to provide ubiquitous service, the paper puts forward a network selection algorithm based on multiple attribute decision making （MADM） and group decision making （GDM）. Firstly, the proposed algorithm acquires attribute weights＇ vectors of the subjective and objective decision makers based on MADM, and then the two attribute weights＇ vectors are synthesized to be a new attribute weights＇ vector by using GDM. Considering that the results of GDM should be reasonable and convincible, the criterion of consistency is adopted for judging the compatibility of group judgments. More specit]cally, the algorithm takes into account not only objective attributes of networks but also the preference of subscribers and traft]c class Hence it guarantees that the subscribers can not select the networks with poor performance depending on their preference. The simulation results show that the proposed algorithm can effectively reduce the handoff number and provide subscribers with satisfactory quality of service （QoS）.

关键词： heterogeneous wireless networks group decision making compatibility criterion analytic hierarchy process entropy method

Teleportation of a Superposition of Three Orthogonal States of an Atom via Photon Interference

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第4X期46卷 613-616页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme to teleport a superposition of three states of an atom trapped in a cavity to a second atom trapped in a remote cavity. The scheme is based on the detection of photons leaking from the cavities aft... 详细信息

关键词： teleportation superposition photon interference

Robust Scheme for Long-Distance Teleportation of an Unknown Atomic State

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第3期45卷 429-432页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

A scheme is presented for the long-distance teleportation of an unknown atomic state between two separated cavities. The scheme is based on the Raman coupling and cavity decay. In the scheme, the effective atom-cavity coupling strength is much smaller than the cavity decay rate and thus cavities of high quality factor are unnecesssary.

关键词： teleportation atomic state Raman coupling

Efficient Scheme for Dense Coding in Cavity QED and Ion Trap Systems

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2006年第6期45卷 1011-1012页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme for realizing dense coding in cavity QED. The scheme is based on the resonant interaction of two atoms with a cavity mode. The scheme may be realizable with presently available techniques in the mi... 详细信息

关键词： dense coding cavity QED ion trap

High-Speed Generation of Entangled States for Two Three-Level Atoms

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2007年第3期47卷 555-556页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

A scheme is presented for generating entangled states for two three-level atoms in a cavity. In the scheme two atoms simultaneously interact with a cavity mode with a small detuning. Thus, the operation time is very ... 详细信息

关键词： entangled state three-level atom cavity

Scheme for Entangling Two Distant Cavity Mirrors

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2008年第4期49卷 925-927页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

A scheme is presented for the generation of entangled states for two cavity mirrors. In the scheme each mirror initially in a vacuum state interacts with a weak coherent field, resulting in a photon-number dependent k... 详细信息

关键词： entangled state cavity mirror coherent field

Realization of Nonclassical States and Two-Mode Coupling in the Motion of Two Trapped Ions

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2002年第8期38卷 213-216页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme to generate various nonclassical vibrational states in the collective motion of twotrapped ions, such as squeezed states, Schrodinger cat states, and SU(2) states. It is based on Raman-type ***-mod... 详细信息

关键词： nonclassical state, two-mode coupling, trapped ion

Quantum Discrete Fourier Transform in an Ion Trap System

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2007年第6期47卷 1049-1052页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose two schemes for the implementation of quantum discrete Fourier transform in the ion trap systern. In each scheme we design a tunable two-qubit phase gate as the main ingredient. The experimental implementat... 详细信息

关键词： quantum discrete Fourier transform quantum computation ion trap

Test of Nonlocality with an Atom-Field Entangled State

在线全文

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2002年第7期38卷 9-10页

作者： zheng shi-Biao Department of Electronic Science and Applied Physics Fuzhou University Fuzhou 350002 China

We propose a scheme for the test of nonlocality with atom-field entanglement. An atom is sent through a cavity filled with a coherent field with a small amplitude. The dispersive interaction leads to atom-field *** the field is driven by a classical current. The Bell inequality can be tested by the joint measurement of the parity of the field and the atomic state.

关键词： nonlocality, entangled state, Bell inequality