Bose-Einstein condensation in inhomogeneous Josephson arrays

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 o...

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Bibliographic Details
Published inarXiv.org
Main Authors Burioni, R, Cassi, D, Meccoli, I, Rasetti, M, Sodano, S Regina P, Vezzani, A
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 14.11.2000
Subjects
Arrays
Bosons
Condensation
Confining
Helium
Josephson junctions
Topology
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0004100