Influence of spectral diffusion on single-molecule photon statistics.
We investigate the distribution of the number of photons emitted by a single molecule undergoing a spectral diffusion process and interacting with a continuous wave field. Using a generating function formalism an exact analytical formula for Mandel's Q parameter is obtained. The solution, which is valid for weak and strong excitation fields, exhibits transitions between (i) quantum sub-Poissonian and classical super-Poissonian behaviors, and (ii) fast to slow modulation limits.
Department of Chemistry and Biochemistry, Notre Dame University, Indiana 46556, USA.
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Barkai
D000465:Algorithms; D004058:Diffusion; D015233:Models, Statistical; D008962:Models, Theoretical; D017785:Photons; D016012:Poisson Distribution; D013997:Time Factors