检索结果-南通市图书馆

Th. Magnetic Field Effects on Radially Symmetric Core-Sh.ll-Sh.ll Structure

Optics and Ph.tonics Journal 2011年第1期1卷 5-10页

作者： h.midreza Simch. Mah.i Smaeilzadeh.mehdi h. saani Semiconductor Component Industry Iran University of Science and Tech.ology University

In th.s paper, we modeled a core/sh.ll/sh.ll structure with.cylindrical Sch.odinger-Poisson coupled equation wh.n a magnetic field is (and is not) applied along its axis. We sh.wed th. electron density is peaked near th. outer surface of th. ch.nnel wh.n th. magnetic field is applied. Th.refore one may make a nano-device wh.ch.its electrons move only on its outer surface. Also we applied a gate voltage to th. device and sh.wed a h.gh.r th.esh.ld voltage (to turn on th. device) is necessary wh.n a magnetic field is applied. Th.s is because of th. increase in th. lowest energy level similar to th. size quantization. i.e a device with.longer ch.nnel looks like a device with.sh.rter ch.nnel if it is placed in a magnetic field parallel to its axis.

关键词： Naowire Core-Sh.ll-Sh.ll Structure Self-Consistent Calculation Quantum Capacitance

来源：

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

Maximally Entangled States in th. h.drogen Molecule: Th. Role of Spin and Correlation

引用

Journal of Modern Ph.sics 2011年第7期2卷 664-668页

作者： Moh.mmad Ali Vesagh. Moh.en Babamoradi mehdi h.idari saani 不详

Many electron calculations on a simplest realistic two electron system i.e. h.molecule was applied and as th. consequence correlation effects was reflected accurately in th. wavefunctions of h.. Zanardi’s entanglement measurement, demonstrated th.t th. maximum of entanglement for th. ground state h.ppens wh.n U =J and th.s resolved th. controversial conclusion of U = 0 for maximum entanglement. It was sh.wn th.t th. ground and th.rd excited states are maximally entangled. Th.se maximally entangled states and also th. minimally entangled states are correlated to th.ir spin’s property. Th. wavefunctions of th. not magnetic (S = 0) ground and excited states explicitly depend on correlation parameters wh.reas th. first excited states wh.ch.is magnetic (S2 = 2 and Sz≠0) is not entangled. Th. second excited state is not magnetic but its wavefunction does not depend on correlation parameters th.refore it is a moderately entangled state. In any case, by switch.ng on a magnetic field an entangled state with.Sz = 0 can be extracted from a not entangled degenerate magnetic state. We suggest th.t in a realistic molecular scale system, th.re is two criteria for finding maximally entangled electronic states, first th. system sh.uld be in moderately correlated regime and second th. system sh.uld h.ve a non-magnetic (Sz = 0) electronic state.

关键词： h.bbard Model Entanglement h.drogen Molecule

来源：

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

Maximally Entangled States in th. h.drogen Molecule: Th. Role of Spin and Correlation

引用

Journal of Modern Ph.sics 2011年第7期

作者： Moh.mmad Ali Vesagh. Moh.en Babamoradi mehdi h.idari saani

来源：评论

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：