The Effect of Magnetic on the Properties of a Parabolic Quantum Dot Qubit

被引：41

作者：

Li, Wei-Ping ^{[1
]}

Yin, Ji-Wen ^{[1
]}

Yu, Yi-Fu ^{[1
]}

Wang, Zi-Wu ^{[1
]}

Xiao, Jing-Lin ^{[2
]}

机构：

[1] Inner Mongolia Chifeng Coll, Dept Phys & Elect Informat Engn, Chifeng 024000, Peoples R China

[2] Inner Mongolia Univ Nationalities, Coll Phys & Elect Informat, Tongliao 028043, Peoples R China

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2010年 / 160卷 / 3-4期

基金：

中国国家自然科学基金;

关键词：

Quantum dot; Qubit; Cyclotron frequency; SYSTEM;

D O I：

10.1007/s10909-010-0180-9

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

On the condition of electric-LO phonon strong coupling in a parabolic quantum dot, we obtained the eigen energies and the eigenfunctions of the ground state and the first excited state by using the variational method of Pekar type. This system in a quantum dot may be employed as a two-level quantum system qubit. When the electron is in the superposition state of the ground state and the first excited state, we obtained the space-time evolution of the electron density. The relations on the cyclotron frequency with the electron probability density and the period of oscillation are derived in a parabolic quantum dot.

引用

页码：112 / 118

页数：7

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