Physics – Optics
Scientific paper
2007-10-28
Physics
Optics
17 pages, 3 figures, 1 table
Scientific paper
There are many ways of calculating photon statistics in quantum optics in general and single molecule spectroscopy in particular such as the generating function method, the quantum jump approach or time ordering methods. In this paper starting with the optical Bloch equation, within the paths interpretation of Zoller, Marte and Walls we obtain the photon statistics from a sequence of laser pulses expressed by means of quantum trajectories. We find general expressions for Pn(t) - the probability of emitting n photons up to time t, discuss several consequences and show that the interpretation of the quantum trajectories (i) emphasizes contribution to the photon statistics of the coherence paths accumulated in the delay interval between the pulses and (ii) allows simple classification of the terms negligible under certain physical constraints . Applying this method to the concrete example of two square laser pulses we find the probabilities of emitting 0,1 and 2 photons, examine several limiting cases and investigate the upper and lower bounds of P0(t), P1(t) and P2(t) for a sequence of two strong pulses in the limit of long measurement times. Implication to single molecule non-linear spectroscopy and theory of pairs of photons on demand are discussed briefly.
Barkai Eli
He Yong
Shikerman Faina
No associations
LandOfFree
Single Molecule Photon Statistics from a Sequence of Laser Pulses does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Single Molecule Photon Statistics from a Sequence of Laser Pulses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single Molecule Photon Statistics from a Sequence of Laser Pulses will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-237130