Exact solutions of Schrodinger equation for a charged particle on a sphere and on a cylinder in uniform electric and magnetic fields

被引:18
|
作者
Schmidt, Alexandre G. M. [1 ]
机构
[1] Univ Fed Fluminense, Dept Fis Volta Redonda, Inst Ciencias Exatas, R Des Ellis Hermydio Figueira 783,Bloco C, BR-27213415 Volta Redonda, RJ, Brazil
关键词
Schrodinger equation; Generalized spheroidal equation; Ince equation; Exact solutions; SPHEROIDAL WAVE-EQUATION; QUANTUM-MECHANICS; 2-CENTER PROBLEM; SEMICONDUCTOR; SURFACE;
D O I
10.1016/j.physe.2018.10.035
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
We present exact solutions for the Schrodinger equation in the presence of uniform electric and magnetic fields for two distinct surfaces: spherical and cylindrical. For the spherical geometry we solve the generalized spheroidal equation - using a series of associated Legendre functions when both fields are present; and spheroidal functions Ps(theta,phi) for the case where there is only a magnetic field - and study the time-evolution of a gaussian wavepacket. The revival effect takes place exactly at 2 pi. For the cylindrical geometry we manage to solve the Schrodinger equation for a magnetic field pointing off the symmetry axis, namely B = B(1)i + B(o)k and an electric field E = epsilon(0)j. The eigenfunctions are written as products of plane waves, in z-direction, and solutions of Ince equation with complex parameters xi and p.
引用
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页码:200 / 207
页数:8
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