Spatial correlation of two-dimensional Bosonic multi-mode condensates
Quantum Gases
2016-06-09 v1
Abstract
We studied the spatial coherence of a Bosonic two-dimensional multi-mode condensate both through measurements and simulations. It is shown that condensates with a constant spatial density must be described as the superposition of several quantized modes which reduces the overall coherence. In this case, the spatial coherence can appear to decay faster than allowed by the Berezinskii-Kosterlitz-Thouless (BKT) theory. However, we find through spectroscopic measurements that the individual modes show a slower decay of the spatial coherence than the overall system.
Cite
@article{arxiv.1510.03096,
title = {Spatial correlation of two-dimensional Bosonic multi-mode condensates},
author = {Wolfgang H. Nitsche and Na Young Kim and Georgios Roumpos and Christian Schneider and Sven Hoefling and Alfred Forchel and Yoshihisa Yamamoto},
journal= {arXiv preprint arXiv:1510.03096},
year = {2016}
}