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issp-center-dev / dsqss

DSQSS -- Discrete Space Quantum System Solver
http://www.pasums.issp.u-tokyo.ac.jp/dsqss/
GNU General Public License v3.0
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DSQSS for Bose-Hubbard model on a frustrated 2D lattice #43

Open HamidArianZad opened 7 months ago

HamidArianZad commented 7 months ago

Hi,

I would like to study the ground-state phase transition and structure factor of the extended Bose-Hubbard model on a frustrated 2D lattice such as star lattice or square-Kagome lattice. Is it possible to use DSQSS package to do that?

yomichi commented 7 months ago

https://issp-center-dev.github.io/dsqss/manual/v2.0.4/en/dla/users-manual/input_simple.html#hamiltonian

If t (hopping constant) is positive, yes -- the negative sign problem does not appear.