Variational study of hard-core bosons in a 2-D optical lattice using Projected Entangled Pair States (PEPS)

Details Variational study of hard-core bosons in a 2-D optical lattice using Projected Entangled Pair States (PEPS) Variational study of hard-core bosons in a 2-D optical lattice using Projected Entangled Pair States (PEPS)

2006-11-20

arxiv.org/abs/cond-mat/0611522v1

Phys. Rev. A 75, 033605 (2007)

Physics

Condensed Matter

Other Condensed Matter

9 pages, 9 figures

Scientific paper

We have studied the system of hard-core bosons on a 2-D optical lattice using
a variational algorithm based on projected entangled-pair states (PEPS). We
have investigated the ground state properties of the system as well as the
responses of the system to sudden changes in the parameters. We have compared
our results to mean field results based on a Gutzwiller ansatz.

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