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Why spontaneous emission?

 

作者: P. W. Milonni,  

 

期刊: American Journal of Physics  （AIP Available online 1984）
卷期: Volume 52, issue 4  

页码: 340-343

 

ISSN:0002-9505

 

年代: 1984

 

DOI:10.1119/1.13886

 

出版商: American Association of Physics Teachers

 

关键词: quantum mechanics;atoms;spontaneous emission;dipole moments;zero−point energy;einstein coefficients

 

数据来源: AIP

 

摘要:

This paper is a discussion of that perennial question, ‘‘Why does an excited atom radiate?’’ A satisfactory physical picture emerges when proper account is taken of the interplay between radiation reaction and the (quantum‐mechanical) zero‐point fluctuations of the radiation field. The fluctuation‐dissipation connection between these two effects is therefore emphasized.

 

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