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|Type:||Artigo de periódico|
|Title:||The Number Of Photon Counting Measurements, The Visibility And The Intensity|
|Abstract:||We calculate, under certain ideal conditions, the number of counting measurements, nc, necessary to guarantee a measurement of the visibility of an interference pattern within a specified precision θ, with a specified probability P0, in a single experimental run. Also we find that if the light intensity for an ideal laser is decreased (or increased), then the expected number of photons in the interference pattern necessary to obtain the visibility with the same criteria (θ, P0) remains constant. For thermal light this is not true, the expected number of photons depends on the intensity. That is, although interference is independent of intensity, the expected number of photons needed to obtain the visibility with the criteria (θ, P0) does depend on the intensity in general. An interest in this analysis from the Foundations of quantum mechanics is mentioned. © 1985 Società Italiana di Fisica.|
|Editor:||Società Italiana di Fisica|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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