Berlin 2014 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 5: Ultracold plasmas and Rydberg systems I (with Q)
A 5.3: Vortrag
Montag, 17. März 2014, 11:00–11:15, DO24 1.101
Excitation dynamics in dissipative many-body Rydberg systems — •David W. Schönleber1,2, Martin Gärttner1, and Jörg Evers1 — 1Max-Planck-Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg — 2Max-Planck-Institute for the Physics of Complex Systems, 01187 Dresden
Inevitably present in many current experiments with ultracold Rydberg atoms, dissipative effects such as dephasing and decay modify the dynamics of the examined system. To study the effects of these processes on the excitation dynamics, we employ wave function Monte Carlo technique [1]. Starting from the exact many-body Hamiltonian, wave function Monte Carlo technique allows for a treatment of incoherent effects which is equivalent to master equation treatment. Comparing dissipative with quasi-coherent dynamics, we find qualitatively different excitation dynamics arising in off-resonant excitation. In addition, we test the scope of established models such as the rate equation by means of wave function Monte Carlo calculations.
[1] K. Mølmer et al, J. Opt. Soc. Am. B 10, 524-538 (1993)