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

被引:5
作者
Wei-Ping Li
Ji-Wen Yin
Yi-Fu Yu
Zi-Wu Wang
Jing-Lin Xiao
机构
[1] Inner Mongolia Chifeng College,Department of Physics and Electronic Informational Engineering
[2] Inner Mongolia University for Nationalities,College of Physics and Electronic Information
来源
Journal of Low Temperature Physics | 2010年 / 160卷
关键词
Quantum dot; Qubit; Cyclotron frequency;
D O I
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中图分类号
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.
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页码:112 / 118
页数:6
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