Coherence freeze in an optical lattice investigated via pump-probe spectroscopy
Quantum Physics
2010-11-11 v2
Abstract
Motivated by our observation of fast echo decay and a surprising coherence freeze, we have developed a pump-probe spectroscopy technique for vibrational states of ultracold Rb atoms in an optical lattice to gain information about the memory dynamics of the system. We use pump-probe spectroscopy to monitor the time-dependent changes of frequencies experienced by atoms and to characterize the probability distribution of these frequency trajectories. We show that the inferred distribution, unlike a naive microscopic model of the lattice, correctly predicts the main features of the observed echo decay.
Keywords
Cite
@article{arxiv.1005.2635,
title = {Coherence freeze in an optical lattice investigated via pump-probe spectroscopy},
author = {Samansa Maneshi and Chao Zhuang and Christopher R. Paul and Luciano S. Cruz and Aephraim M. Steinberg},
journal= {arXiv preprint arXiv:1005.2635},
year = {2010}
}
Comments
4 pages, 5 figures