Effects of Spin Quantum Force in Magnetized Quantum Plasma

被引：1

作者：

Yang Xiu-Feng ^{[1
]}

Jiang Hong ^{[1
]}

Qi Xue-Hong ^{[1
]}

Duan Wen-Shan ^{[1
]}

机构：

[1] NW Normal Univ, Coll Phys & Elect Engn, Lanzhou 730070, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2011年 / 56卷 / 04期

基金：

中国国家自然科学基金;

关键词：

quantum magnetosonic soliton; reductive perturbation method; KdV equation; ELECTRODYNAMICS; PHOTON; FIELDS; WAVES; MODEL;

D O I：

10.1088/0253-6102/56/4/29

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Starting from the governing equations for a quantum magnetoplasma including the electron spin -1/2 effects and quantum Bohm potential, we derive Korteweg-de Vries (KdV) equation of the system of quantum magnetohydrodynamics (QMHD). The amplitude and width of magnetosonic soliton with different parameters in the system are studied. It is found that the normalized Zeeman energy E plays a crucial role, for E >= 1 the amplitude r(m xi) and the width w(xi) of solitary wave all decrease as E increases. That is, the introduction of spin quantum force modifies the shape of solitary magnetosonic waves and makes them more narrower and shallower.

引用

页码：769 / 773

页数：5

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