Ohmic electrical conductivity in a magnetic field
作者:
V. K. Arora,
期刊:
American Journal of Physics
(AIP Available online 1976)
卷期:
Volume 44,
issue 7
页码: 643-646
ISSN:0002-9505
年代: 1976
DOI:10.1119/1.10325
出版商: American Association of Physics Teachers
数据来源: AIP
摘要:
A quantum‐mechanical theory using a density matrix for electrical conductivity in the presence of a magnetic field is described. The conventional methods using the Boltzmann transport equation are not satisfactory because the magnetic field introduces a curvature in the free path of an electron. The expectation value of the current density and the components of the conductivity tensor in a magnetic field are obtained. The advantages of the density matrix in electric transport problems with a magnetic field are discussed.
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