Griffiths Physics in an Ultracold Bose Gas
Quantum Gases
2019-07-18 v4 Atomic Physics
Abstract
Coupled XY model systems consisting of three-dimensional (3D) systems with disordered interlayer physics are of significant theoretical interest. We realize a set of coupled quasi-2D layers of Rb in the presence of disordered inter-layer coupling. This is achieved with our high bandwidth arbitrary optical lattice to obviate restrictions on the dimensionality of disorder with speckle-generated optical fields. We identify phase crossover regions compatible with the existence of a pair of intermediate Griffiths phases between a thermal state and the emergence of bulk 3D superfluidity.
Keywords
Cite
@article{arxiv.1806.07434,
title = {Griffiths Physics in an Ultracold Bose Gas},
author = {M. E. W. Reed and Z. S. Smith and Aftaab Dewan and S. L. Rolston},
journal= {arXiv preprint arXiv:1806.07434},
year = {2019}
}
Comments
7 pages, 8 figures; updated to match published version