Bose-Einstein condensation in inhomogeneous Josephson arrays
Condensed Matter
2009-10-31 v2
Abstract
We show that spatial Bose-Einstein condensation of non-interacting bosons occurs in dimension d < 2 over discrete structures with inhomogeneous topology and with no need of external confining potentials. Josephson junction arrays provide a physical realization of this mechanism. The topological origin of the phenomenon may open the way to the engineering of quantum devices based on Bose-Einstein condensation. The comb array, which embodies all the relevant features of this effect, is studied in detail.
Cite
@article{arxiv.cond-mat/0004100,
title = {Bose-Einstein condensation in inhomogeneous Josephson arrays},
author = {R. Burioni and D. Cassi and I. Meccoli and M. Rasetti and S. Regina. P. Sodano and A. Vezzani},
journal= {arXiv preprint arXiv:cond-mat/0004100},
year = {2009}
}
Comments
4 pages, 5 figures