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Generation of a new bipartite coherent-entangled state and its applications 被引量:1
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作者 张宝来 孟祥国 王继锁 《Chinese Physics B》 SCIE EI CAS CSCD 2012年第3期51-55,共5页
A new bipartite coherent-entangled state is introduced in the two-mode Fock space, which exhibits the properties of both a coherent state and an entangled state. The set of coherent-entangled states makes up a complet... A new bipartite coherent-entangled state is introduced in the two-mode Fock space, which exhibits the properties of both a coherent state and an entangled state. The set of coherent-entangled states makes up a complete and partly nonorthogonal representation. A simple experimental scheme to produce the coherent-entangled state using an asymmetric beamsplitter is proposed. Some applications of the coherent-entangled state in quantum optics are also oresented. 展开更多
关键词 bipartite coherent-entangled state asymmetric beamsplitter Einstein-Podolsky-Rosen entangled state squeezed state
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A Review of P2P Financial Research
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作者 Shen Hongmei 《Journal of Contemporary Educational Research》 2018年第1期40-44,共5页
Since 2007,people's spending habits began to change:from cash to the bank card,from mobile phone to non-cash transactions,from traditional finance to network finance.And the rapid rise of emerging industries resul... Since 2007,people's spending habits began to change:from cash to the bank card,from mobile phone to non-cash transactions,from traditional finance to network finance.And the rapid rise of emerging industries results in many of the P2P Financial Corporation established,it makes the P2P platform trading volume continue to rise at an alarming rate.In this context,the industry self-discipline environment is like the mining of good and evil.The atmosphere was foul,bad phenomenon,investors difficult activist phenomenon,the phenomenon of credit default as one falls,another rises to a series of problems,such as serious absence of P2P financial supervision to promote the healthy and sustainable development,is a major problem for all participants,which must to be solved.Firstly,P2P development of management mode in the current situation in our country is discussed,and then it analyzes the P2P network of financial management platform,finally it proposes the existing problems in the relative countermeasures and suggestions of effective P2P financing mode,hoping to promote its advantages,overcoming the disadvantages of P2P. 展开更多
关键词 P2P network ECONOMY model INFORMATION MECHANISM TRADITIONAL FINANCE
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A novel resource optimization scheme for multi-cell OFDMA relay network 被引量:1
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作者 Ning DU Fa-sheng LIU 《Frontiers of Information Technology & Electronic Engineering》 SCIE EI CSCD 2016年第8期825-833,共9页
在蜂窝网络中,用户通过各自的基站相互通信,且通常位于不同的小区内。对于用户来说,基站相当于一个解码转发中继节点。除了这种传统的用户之外,我们认为相互之间需要通信的用户还可以位于同一小区内,由此产生小区内通信。在这种情况下,... 在蜂窝网络中,用户通过各自的基站相互通信,且通常位于不同的小区内。对于用户来说,基站相当于一个解码转发中继节点。除了这种传统的用户之外,我们认为相互之间需要通信的用户还可以位于同一小区内,由此产生小区内通信。在这种情况下,基站可作为双向中继取代传统的解码转发中继,实现信息交换。多小区正交频分多址网络同时包含了这两种类型的用户。其中,资源优化分配是我们的研究重点。特别地,我们联合优化子载波分配、子载波成对和功率分配,从而最大化加权速率。通过拉格朗日对偶分解近似求解在用户功率固定的情况下基站资源的最优化问题。仿真结果表明,本文提出的策略优于现有的策略。 展开更多
关键词 OFDMA 优化方案 网络资源 中继 小区 正交频分多址接入 资源分配问题 最终用户
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Decyloxyphenyl-substituted Quinoxaline-embedded Conjugated Electrochromic Polymers with High Switching Stability and Fast Response Speed 被引量:1
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作者 Zhen Xu Ling-qian Kong +1 位作者 赵金生 范维玉 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2016年第4期407-419,共13页
Two novel decyloxyphenylquinoxaline-based donor-acceptor (D-A) electroactive monomers bearing dialkoxythiophene as the donor unit are synthesized using Stille coupling reaction. The corresponding polymers, poly[2,3-... Two novel decyloxyphenylquinoxaline-based donor-acceptor (D-A) electroactive monomers bearing dialkoxythiophene as the donor unit are synthesized using Stille coupling reaction. The corresponding polymers, poly[2,3- bis(4-decyloxyphenyl)-5,8-bis(3,4-dimethoxylthiophen-2-yl)quinoxaline] (P1) and poly[2,3-bis(4-decyloxyphenyl)-5,8- bis(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)quinoxaline] (P2), are directly deposited onto the working electrode surface by electropolymerization. All materials were characterized by nuclear magnetic resonance (NMR), mass spectrometry (MS), scanning electron microscopy (SEM), cyclic voltammetry (CV), ultraviolet-visible absorption spectrometry (UV-Vis) and spectro-electrochemical measurements. Electrochemical studies demonstrate that both polymers are capable of showing both reasonable n- and p-doping processes, and advanced long-term switching stabilities. 3,4-Ethylenedioxythiophene substituted for 3,4-dimethoxythiophene as a donor unit, which enhances the conjugated double-bond character of the conducting polymer, thus leading to a lower electronic band-gap. Likewise, the neutral state color of the synthesized polymer tuned from blue to blue-green corresponding to the red shift of the maximum absorption wavelengths in the visible region. In addition, kinetics study of P1 revealed 42% (595 nm), 30% (839 nm) and 69% (1500 nm) transmittance changes (A7%), while P2 exhibited 32% (740 nm), 71% (2000 nm) at the dominant wavelengths. It was also observed that both films could switch quickly between the neutral state and oxidation state, with the response time less than 1 s both in visible and near infrared regions. 展开更多
关键词 3 4-Dimethoxythiophene Decyloxyphenylquinoxaline High switching stability Fast response time.
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