Skip navigation
Skip navigation

Melting of discrete vortices via quantum fluctuations

Li (Lee), Chaohong; Alexander, Tristram J; Kivshar, Yuri


We consider nonlinear boson states with a nontrivial phase structure in the three-site Bose-Hubbard ring, quantum discrete vortices (or q vortices), and study their “melting” under the action of quantum fluctuations. We calculate the spatial correlations in the ground states to show the superfluid-insulator crossover and analyze the fidelity between the exact and variational ground states to explore the validity of the classical analysis. We examine the phase coherence and the effect of quantum...[Show more]

CollectionsANU Research Publications
Date published: 2006-11-01
Type: Journal article
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.97.180408


File Description SizeFormat Image
Li_Melting2006.pdf536.48 kBAdobe PDFThumbnail

Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  23 August 2018/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator