The Physics of Ghost imaging

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The Physics of Ghost imaging

Mode 1Mode 2Detector 1k 1Detector 2Far-fieldk 2 (Fourier transform Plane)Identical modes:I 1I 2 I 1I 2 I 1I 2The HBT experiment was successfully interpreted as statisticalcorrelation of intensity fluctuations. In HBT, the measurement is infar-field (Fourier transform plane). The measured two intensitieshave the same fluctuations while the two photodetectors receive thesame mode and thus yield maximum correlation. When the twophotodetector receive different modes, however, the intensitieshave different fluctuations, and thus no correlation is observable.

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