Coherence and Fluctuations of the Electromagnetic Field

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概要

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• The first-order coherence condition is derived in terms of correlations betweendifferent field modes. Fluctuations of the electromagnetic field are shown to play animportant role in the concept of coherence. The coherent states are shown to be theonly ones which reduce these fluctuations to their minimum value. For the case of afield in which the different field modes are independent, the degree of first-ordercoherence and the visibility of interference fringes are shown to be specified com-pletely by these fluctuations. Measurements of this visibility yield information on thestatistical properties of radiation fields. For squeezed states, this visibility is expressedas a function of squeezed parameters. Moreover, the difference between generalizedcoherent states becomes manifest in measurements of this visibility.[coherence, coherent state, generalized coherent state, squeezed state, visibility, l{ electromagnetic field fluctuationsl

• 社団法人日本物理学会の論文
• 1991-09-15

著者

• Tanaka Hidejiro

  Department Of Applied Physics School Of Science And Engineering Waseda University

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