原子与分子物理学报Issue(6)：951-954,4.DOI:10.3969/j.issn.1000-0364.2014.06.017
声子色散对量子点中弱耦合磁极化子声子平均数的影响
The influence of phonon dispersion on the average phonon number of weak-coupling magnetopolaron in a parabolic quantum dot
摘要
Abstract
The influence of phonon dispersion on the average phonon number of weak-coupling magnetopolaron in a parabolic quantum dot is studied by using the linear-combination operator and unitary transformation meth-od.Taking account of the longitudinal optical ( LO) phonons dispersion in a parabolic approximation, the ground state energy as a function of the effective confinement length, the coefficient of the phonon dispersion, the cyclo-tron-resonance frequency and the electron-phonon coupling constant and the average number of virtual pho-nons around the electron as a function of the coefficient of the phonon dispersion and the electron-phonon cou-pling constant are obtained.Numerical calculations results show that the ground state energy decreases with in-creasing the coefficient of the phonon dispersion;the average number of virtual phonons around the electron in-creases with increasing the electron-phonon coupling constant and the coefficient of the phonon dispersion in the electron-LO-phonon weak-coupling case.关键词
量子点/磁极化子/基态/声子色散Key words
Quantum dot/Magnetopolaron/Ground state/Phonon dispersion分类
数理科学引用本文复制引用
冀文慧,杨洪涛,胡文弢,呼和满都拉..声子色散对量子点中弱耦合磁极化子声子平均数的影响[J].原子与分子物理学报,2014,(6):951-954,4.基金项目
内蒙古自治区高等学校科学研究项目（NJZY12248）；内蒙古自治区高等学校科学研究项目 （）
