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A beam with a photon flux of 1000 photons/s is incident on a detector with a...

A beam with a photon flux of 1000 photons/s is incident on a detector with a quantum
efficiency of 20%. If the time interval of the counter is set to 10 s, calculate the average
and standard deviation of the photocount number for the following scenarios:
(a) the light has Poissonian statistics;

(b) the light has super-Poissonian statistics with ∆n = 2×∆nPoisson;

(c) the light is in a photon number state.

Science   Advanced-Physics   
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