2004/03/19 by Andrey R. Kolovsky, Andreas Buchleitner · 2 citations
Physics and Astronomy · #cond-mat.soft
paper · pdf · doi:10.1209/epl/i2004-10265-7
published as Europhys. Lett. 68 (2004), 632 · 4 pages, 4 figures
arxiv created 2004/03/19 · arxiv updated 2009/12/01
We present a numerical study of the spectral properties of the 1D Bose-Hubbard model. Unlike the 1D Hubbard model for fermions, this system is found to be non-integrable, and exhibits Wigner-Dyson spectral statistics under suitable conditions.