Coherent Interaction of a Single Fermion with a Small Bosonic Field
Abstract
We have experimentally studied few-body impurity systems consisting of a single fermionic atom and a small bosonic field on the sites of an optical lattice. Quantum phase revival spectroscopy has allowed us to accurately measure the absolute strength of Bose-Fermi interactions as a function of the interspecies scattering length. Furthermore, we observe the modification of Bose-Bose interactions that is induced by the interacting fermion. Because of an interference between Bose-Bose and Bose-Fermi phase dynamics, we can infer the mean fermionic filling of the mixture and quantify its increase (decrease) when the lattice is loaded with attractive (repulsive) interspecies interactions.
Keywords
Cite
@article{arxiv.1011.3807,
title = {Coherent Interaction of a Single Fermion with a Small Bosonic Field},
author = {Sebastian Will and Thorsten Best and Simon Braun and Ulrich Schneider and Immanuel Bloch},
journal= {arXiv preprint arXiv:1011.3807},
year = {2011}
}
Comments
4+ pages, 5 figures, updated to <a href="http://dx.doi.org/10.1103/PhysRevLett.106.115305">published version</a>