A Scheme for Generating Entangled Squeezed States Based on Cavity QED

We propose a scheme for generating entangled squeezed vacuum states of electromagnetical fields. The scheme is based on cavity QED. In this scheme, an atom interacts, successively, with a classical field, two quantum cavity fields, and another classical field. By detecting the final states of the atom, the two quantum cavity fields will be projected to an entangled state.     

Efficiency Enhancement of Dye-Sensitized Solar Cells： Using Salt CuI as an Additive in an Ionic Liquid

Energy conversion efficiency of the dye-sensitized solar cell is improved from 3.5% to 4.5% by adding a small amount of CuI into an ionic liquid electrolyte. It is found that other copper-I salts, for example, CuBr, have the same effect for the dye-sensitized solar cell. Experimental results show that no Cu^2＋ ions exist in this electrolyte. It is suggested that this improvement is caused by the adsorption of Cu^＋ onto the TiO2 porous film.     

Fresnel-Transform＇s Quantum Correspondence and Quantum Optical ABCD Law

Corresponding to the Fresnel transform there exists a unitary operator in quantum optics theory, which could be known the Fresnel operator （FO）. We show that the multiplication rule of the FO naturally leads to the quantum optical ABCD law. The canonical operator methods as mapping of ray-transfer ABCD matrix is explicitly shown by the normally ordered expansion of the FO through the coherent state representation and the technique of integration within an ordered product of operators. We show that time evolution of the damping oscillator embodies the quantum optical ABCD law.     

Realization of an All-Fibre Self-Organization Intra-Cavity Coherent Erbium-Doped Fibre Laser

An intra-cavity coherent coupling Michelson Er-doped fibre （EDF） laser （MCEDFL） is proposed and demonstrated. Characteristics of the MCEDFL are investigated. It is found that the MCEDFL with a polarizer can be coherent combined effectively. By the experiment based on fibre Bragg gratings （FBGs） with different reflectivity, we find that the reflectivity of the FBG play a vital role in improving the performance of the MCEDFL. This outcome adequately shows many favourable features, such as high efficiency, easy operation, and simple all-fibre configuration.     

CPU芯片封装技术日新月异

本文主要介绍了CPU芯片封装技术的发展演变，以及未来的芯片封装技术。同时，从中可以看出芯片技术与封装技术相互促进，协调发展密不可分的关系。     

一种新型低电荷共享电荷泵电路

采用GSMC0.18μm工艺设计了性能优良的电荷泵,与传统电荷泵相比,此电荷泵具有低失配(mismatch≤2%)、低功耗(≤0.15mw)、低电荷共享的特点,可广泛应用于电荷泵锁相环(CPPLL)中。     

CAMALOT点胶机离线编程系统-CPS的设计与开发

SMT设备要达到最大的产量，必须要考虑生产线的效率。点胶机是SMT生产线中的重要设备，因此提高点胶机的生产效率具有十分重要的意义。本文以CAMALOT 5000系统为例，介绍了点胶机离线编程软件的设计与开发中的思想、方法和经验，并着重探讨了坐标数据的处理和转换，同时针对基于点胶系统优化的TSP问题进行了分析和研究，对程序优化进行了系统分析设计，并编程实现了基本方案。最后在CAMALOT 5000系统上使用本解决方案，大幅度提高了生产效率，证明了本解决方案的优越性和高效性，也为其他SMT设备的离线编程软件的设计提供了一种可参考的思路。     

产业与政策：ＩＣＴ多领域为增长注入持久的动力

2014年,ICT多个领域仍将呈现活跃的单点突破、集成创新和跨界融合,为增长注入持久的动力,推动整个产业以更大的幅度加快发展.紧跟变革、发掘内需、激励创新、突破瓶颈的多项ICT产业政策更值得期待.     

理想混合物定义与微观特征间的关系

从理想混合物的定义出发，用数学推导的方法建立了它的微观模型。推导得到的两个推论可作为进一步改进非电解质溶液理论的出发点。