Volume 68, Number 5, December 2004
|Page(s)||632 - 638|
|Published online||05 November 2004|
Quantum chaos in the Bose-Hubbard model
Max-Planck-Institut für Physik Komplexer Systeme - D-01187 Dresden, Germany
2 Kirensky Institute of Physics - 660036 Krasnoyarsk, Russia
Accepted: 13 October 2004
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.
PACS: 05.45.Mt – Quantum chaos; semiclassical methods / 05.30.Jp – Boson systems / 03.75.Kk – Dynamic properties of condensates; collective and hydrodynamic excitations, superfluid flow
© EDP Sciences, 2004
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