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Phase, Group, and Signal Velocity

 

作者: J. Weber,  

 

期刊: American Journal of Physics  （AIP Available online 1954）
卷期: Volume 22, issue 9  

页码: 618-620

 

ISSN:0002-9505

 

年代: 1954

 

DOI:10.1119/1.1933858

 

出版商: American Association of Physics Teachers

 

数据来源: AIP

 

摘要:

Phase, group, and signal velocity are defined. Simple examples are given in which the phase and group velocities exceed the velocity of light, in which the phase velocity is a function of distance, and in which the group velocity is equal to the signal velocity.

 

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