,Dynamics of electron in a surface quantum well

来源 :中国物理B(英文版) | 被引量 : 0次 | 上传用户:missile60
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
This paper studies the quantum dynamics of electrons in a surface quantum well in the time domain with autocorrelation of wave packet. The evolution of the wave packet for different manifold eigenstates with finite and infinite lifetimes is investigated analytically. It is found that the quantum coherence and evolution of the surface electronic wave packet can be controlled by the laser central energy and electric field. The results show that the finite lifetime of excited states expedites the dephasing of the coherent electronic wave packet significantly. The correspondence between classical and quantum mechanics is shown explicitly in the system.
其他文献
Using the numerical unrestricted Hartree-Fock approach, we study the ground state of a two-orbital model describing newly discovered FeAs-based superconductors.
This paper studies the propagation properties of Gauss鈥擝essel beams in a turbulent atmosphere. Based on the extended Huygens-Fresnel principle, it derives the
作为一名记者,面对客观事物,写什么,怎么写?这似乎不成为一个问题。但是,客观事实告诉我们,面对同一客观事物,由于感情,态度、认识的不同,所报道的倾向性就不会一样。报道是
This paper proposes an efficient scheme for deterministic generation of entangled coherent states for two atomic samples. In the scheme two collections of atoms
This paper reports that a chemical method is employed to synthesize Co and Al co-doped ZnO, namely,Zn0.99-xCo0.01AlxO dilution semiconductors with the nominal c
期刊
配方施肥是国家单列“七五”期间农业生产重点推广项目。根据省统一试验方案,我们于1988~1990年在10多个乡、30多个点进行了优化配方施肥小区试验,建立了两个肥力等级的肥料
一、设计教学的设计是提高教学成效及推动设计进步的前沿工作进入信息时代,设计已被广泛倡导。尤其近三十年各院校设计专业的蓬勃发展,以及为社会输送各类设计专业的毕业生,