Related Experiment Videos
Influence of spectral diffusion on single-molecule photon statistics.
1Department of Chemistry and Biochemistry, Notre Dame University, Indiana 46556, USA.
Physical Review Letters
|August 25, 2004
Summary
We derived an exact formula for Mandel's Q parameter in spectral diffusion, revealing transitions between quantum sub-Poissonian and classical super-Poissonian photon emission behaviors under varying excitation fields.
Area of Science:
- Quantum optics
- Molecular spectroscopy
Background:
- Spectral diffusion in single molecules affects photon emission statistics.
- Understanding photon distribution is crucial for quantum information applications.
Purpose of the Study:
- To determine the photon emission distribution of a single molecule undergoing spectral diffusion.
- To obtain an exact analytical formula for Mandel's Q parameter.
Main Methods:
- Utilizing a generating function formalism.
- Analyzing the interaction of a single molecule with a continuous wave field.
Main Results:
- An exact analytical formula for Mandel's Q parameter was derived.
- The formula is valid for both weak and strong excitation fields.
- Observed transitions between quantum sub-Poissonian and classical super-Poissonian photon statistics.
- Identified transitions between fast and slow spectral modulation limits.
Conclusions:
- The study provides a comprehensive theoretical framework for photon statistics in spectral diffusion.
- The findings offer insights into controlling quantum and classical light properties from single molecules.