Coherent Population Trapping with Controlled Interparticle Interactions
Atomic Physics
2015-05-14 v2
Abstract
We investigate Coherent Population Trapping in a strongly interacting ultracold Rydberg gas. Despite the strong van der Waals interactions and interparticle correlations, we observe the persistence of a resonance with subnatural linewidth at the single-particle resonance frequency as we tune the interaction strength. This narrow resonance cannot be understood within a meanfield description of the strong Rydberg--Rydberg interactions. Instead, a many-body density matrix approach, accounting for the dynamics of interparticle correlations, is shown to reproduce the observed spectral features.
Cite
@article{arxiv.0912.4099,
title = {Coherent Population Trapping with Controlled Interparticle Interactions},
author = {H. Schempp and G. Günter and C. S. Hofmann and C. Giese and S. D. Saliba and B. D. DePaola and T. Amthor and M. Weidemüller and S. Sevinçli and T. Pohl},
journal= {arXiv preprint arXiv:0912.4099},
year = {2015}
}