Accurate determination of the superfluid-insulator transition in the one-dimensional Bose-Hubbard model
Jakub Zakrzewski, Dominique Delande
Abstract
The quantum phase transition point between the insulator and the superfluid phase at unit filling factor of the infinite one-dimensional Bose-Hubbard model is numerically computed with a high accuracy, better than current state of the art calculations. The method uses the infinite system version of the time evolving block decimation algorithm, here tested in a challenging case.
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