Dennis Hinrichs et.al.: Mott insulator-to-superfluid
phase transition for arbitrary dimensionality and filling in the
Dennis Hinrichs, Matthias Langemeyer, Niklas Teichmann, and Martin Holthaus
Mott insulator-to-superfluid phase transition for arbitrary dimensionality and filling in the Bose-Hubbard model
- Date of Upload: 2009-03-21
high-order perturbation theory, Bose-Hubbard model, phase diagram, process chain approach
- We study the transition from a Mott insulator to a superfluid in
the Bose-Hubbard model at zero temperature for the experimental
relevant dimensionalities one, two and three, and in the mean-field
limit of high dimensionalities. Converting Kato's perturbation series
into an efficient numerical algorithm capable of reaching high orders,
we obtain accurate critical parameters for any filling factor.
- URL: http://www.physik.uni-oldenburg.de/condmat/Hinrichs/poster/BHpd_HH09.pdf (application/pdf)
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Last Update: Sat Mar 21 13:09:15 2009