The influences of the dispersion and impurity on the properties of the Gaussian confining potential qubit with magnetic field

被引：6

作者：

Bai, Xu-Fang ^{[1
]}

Xin, Wei ^{[2
]}

Eerdunchaolu ^{[2
]}

机构：

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

[2] Hebei Normal Univ Sci & Technol, Inst Condensed Matter Phys, Qinhuangdao, Hebei, Peoples R China

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS B | 2019年 / 33卷 / 27期

基金：

中国国家自然科学基金;

关键词：

Qubit; Gaussian confining potential; dispersion; impurity; decoherence time; phase rotation quality factor; QUANTUM-DOT QUBIT; COHERENCE TIME; TEMPERATURE;

D O I：

10.1142/S0217979219503223

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The influences of the dispersion, the impurity and the electron-phonon coupling (EPC) on the properties of the Gaussian confining (GC) potential qubit with magnetic field were studied by Pekar-type variation method. Results show that the decoherence time will increase with increasing the dielectric constant (DC) ratio, the dispersion coefficient and the EPC strength, respectively. The phase rotation quality factor increases with increasing the dielectric constant ratio, the dispersion coefficient and EPC strength, respectively. The magnetic field has a regulatory effect on the decoherence time and the phase rotation quality factor.

引用

页数：12

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