Physics – Quantum Physics
Scientific paper
2005-04-12
Physics
Quantum Physics
10 pages, 6 figures
Scientific paper
10.1103/PhysRevA.72.033805
We study a single incoherently pumped atom moving within an optical high-Q resonator in the strong coupling regime. Using a semiclassical description for the atom and field dynamics, we derive a closed system of differential equations to describe this coupled atom-field dynamics. For sufficiently strong pumping the system starts lasing when the atom gets close to a field antinode, and the associated light forces provide for self-trapping of the atom. For a cavity mode blue detuned with respect to the atomic transition frequency this is combined with cavity induced motional cooling allowing for long term steady-state operation of such a laser. The analytical results for temperature and field statistics agree well with our earlier predictions based on Quantum Monte Carlo simulations. We find sub-Doppler temperatures that decrease with gain and coupling strength and can even go beyond the limit of passive cavity cooling. Besides demonstrating the importance of light forces in single-atom lasers, this result also gives strong evidence to enhance laser cooling through stimulated emission in resonators.
Domokos Peter
Ritsch Helmut
Salzburger Thomas
No associations
LandOfFree
Theory of a single-atom laser including light forces 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 Theory of a single-atom laser including light forces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Theory of a single-atom laser including light forces will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-350553