检索结果-南通市图书馆

中国信息技术教育 2013年第12期 30-30,65页

作者：陈凯上海市位育中学

说起井字棋，大概无人不知，无人不晓。不过恐怕大部分人没玩过“量子井字棋”游戏吧。这个游戏可以说是传统井字棋游戏的升级版本，美国物理学杂志曾专门刊文介绍了这款井字棋游戏的玩法——可是，为什么一家专业的学术期刊会对井字棋... 详细信息

说起井字棋，大概无人不知，无人不晓。不过恐怕大部分人没玩过“量子井字棋”游戏吧。这个游戏可以说是传统井字棋游戏的升级版本，美国物理学杂志曾专门刊文介绍了这款井字棋游戏的玩法——可是，为什么一家专业的学术期刊会对井字棋感兴趣？

关键词：量子计算纠缠升级版本学术期刊游戏量子井物理学

量子井中粒子的严格波函数和它的压缩效应(英文)

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

苏州城建环保学院学报 1998年第3期11卷 12-17页

作者：仲嘉霖姜莉凌寅生

应用量子不变量理论，运动边界量子井中粒子的严格波函数已经被得到了，文章也讨论了运动边界对量子并性质的影响以及对压缩效应的影响。

关键词：量子井压缩效应不变量量子论

A Novel Coupled Quantum Well Structure with Low-Driving Voltage, Low Absorption Loss and Large Field-Induced Refractive Index Change

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Chinese Physics Letters 2005年第4期22卷 956-959页

作者：徐枝新江晓清徐义刚杨爱龄王明华周强李锡华杨建义 DepartmentofInformationScienceandElectronicEngineering ZhejiangUniversityHangzhou310027//CollegeofSciencesZhejiangUniversityofScienceandTechnologyHangzhou310023 DepartmentofInformationScienceandElectronicEngineering ZhejiangUniversityHangzhou310027

Based on a two-energy-level system, we analyse the changing ground eigenenergies of symmetric GaAs/AlxGa1-x As coupled quantum wells in the presence of an applied electric field. From the theoretical analysis for symmetric coupled quantum well, we find the advantages and disadvantages when it is applied to travelling wave modulator. Hence the conception of quasi-symmetric coupled quantum wells is put forward. Based on the demands of travelling wave modulator for quantum well materials, the configuration of quasi-symmetric coupled quantum well is further optimized. Consequently, in the case of low applied electric field (F=20kV/cm) and low absorption loss (α≤100cm-1), a large field-induced refractive change Δn (for TE mode, Δn=0.021; for TM mode, Δn=0.0121) is attained in the optimized coupled quantum well.

关键词：耦合结构量子井低压驱动吸收损失人造折射指数半导体

Effect of Misfit Dislocation Originated from Strained Layer on Photoluminescence Properties of InxGa1-xN／GaN Multiple Quantum Wells

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2005年第4期22卷 971-974页

作者：吕威黎大兵李超荣陈岗张泽 DepartmentofMaterialsScience CollegeofMaterialsScienceandEngineeringJilinUniversityChangchun130012 KeyLaboratoryofSemiconductorMaterialsScience InstituteofSemiconductorsChineseAcademyofSciencesPOBox912Beijing100083 BeijingLaboratoryofElectronMicroscopy InstituteofPhysicsChineseAcademyofSciencesPOBox603Beijing100080 BeijingUniversityofTechnology Beijing100022

InxGaxN/GaN multiple quantum well (MQW) samples with strain-layer thickness larger/less than the critical one are investigated by temperature-dependent photoluminescence and transmission electron microscopy, and double crystal x-ray diffraction. For the sample with the strained-layer thickness greater than the critical thickness, we observe a high density of threading dislocations generated at the MQW layers and extended to the cap layer. These dislocations result from relaxation of the strain layer when its thickness is beyond the critical thickness. For the sample with the strained-layer thickness greater than the critical thickness, temperature-dependent photoluminescence measurements give evidence that dislocations generated from the MQW layers due to strain relaxation are main reason of the poor photoluminescence property, and the dominating status change of the main peak with increasing temperature is attributed to the change of the radiative recombination from the areas including dislocations to the ones excluding dislocations.

关键词：错配断层有机效应光激发光加固层氮化镓合金量子井

Bound States and the Third Harmonic Generation in an Electric Field Biased Semi-parabolic Quantum Well

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 2003年第5X期40卷 614-618页

作者： ZHANGLi XIEHong-Jing DepartmentofMechanicsandElectronicsCollege PanyuPolytechnicPanyu511483China DepartmentofPhysics GuihuagangCampusGuangzhouUniversityGuangzhou510405China

Within the framework of the compact density matrix approach, the third-harmonic generation (THG) in an electric-field-biased semi-parabolic quantum well (QW) has been deduced and investigated. Via variant of displacement harmonic oscillation, the exact electronic states in the semi-parabolic QW with an applied electric field have also been obtained and discussed. Numerical results on typical GaAs material reveal that, electric fields and confined potential frequency of semi-parabolic QW have obvious influences on the energy levels of electronic states and the THG in the semi-parabolic QW systems.

关键词：束缚态电场量子井密度矩阵趋近非线性光学低维量子系统

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

淬火

热处理工艺与设备：英文版 2005年第1期 29-39页

[ 篇名 ] Fabrication of Textured Ag Substrate for YBCO Coated Conductor，[ 篇名 ] Quenching of photodarkening in metal-doped chalcogenide amorphous films，[篇名 ] Quenching of singlet molecular oxygen (-△{sub}g) by vitamins and polyphenols studies by time-resolved ESR，[篇名] Vacuum-Heat-Treatment of hot-work steel，[ 篇名] Quantum confined stark effect in GaInNAs/GaAs mnultiple quantum wells。

关键词：淬火 YBCO 半导体镀膜量子井氧分子