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cond-mat.other2006★ 41 cited
Variational treatment of the Shastry-Sutherland antiferromagnet using Projected Entangled Pair States (PEPS)
A. Isacsson, O. F. Syljuasen
We have applied a variational algorithm based on Projected Entangled Pair States (PEPS) to a two dimensional frustrated spin system, the spin-1/2 antiferromagnetic Heisenberg model…
cond-mat.other2005
Multi-flavor bosonic Hubbard models in the first excited Bloch band of an optical lattice
A. Isacsson, S. M. Girvin
We propose that by exciting ultra cold atoms from the zeroth to the first Bloch band in an optical lattice, novel multi-flavor bosonic Hubbard Hamiltonians can be realized in a new…