Hamburg 2009 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 46: Quanteneffekte: Lichtstreuung und Ausbreitung
Q 46.6: Talk
Thursday, March 5, 2009, 11:45–12:00, VMP 6 HS-E
New approach to multiple scattering of intense laser light by cold atoms — •Tobias Geiger1,2, Thomas Wellens1, Vyacheslav Shatokhin2, and Andreas Buchleitner1 — 1Institute of Physics, University of Freiburg, Hermann-Herder- Str. 13, 79104 Freiburg, Germany — 2Stepanov Institute of Physics, National Academy of Sciences, Nezavisimosti Avenue 68, 220072 Minsk, Belarus
We present two different methods to calculate the spectrum of laser light multiply scattered between cold atoms. The first approach uses the well-known master equation for the time evolution of the reduced atomic density matrix. Due to the exponentially large Hilbert space, this approach is limited to calculations with only a small number of atoms. Therefore, we would like to present a second approach, based on the solutions of the Bloch equations for each individual atom, which are linked to each other in a self-consistent way. We will prove the equivalence between both approaches for the case of two distant atoms, and discuss the possibility of spectral calculations for a disordered sample of many atoms.