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Spin-supersolid phase in Heisenberg chains: a characterization via Matrix Product States with periodic boundary conditions

By means of a variational calculation using Matrix Product States with periodic boundary conditions, we accurately determine the extension of the spin-supersolid phase predicted to exist in the spin-1 anisotropic Heisenberg chain. We compute both the structure factor and the superfluid stiffness, and extract the critical exponents of the supersolid-to-solid phase transition.

preprint2011arXivOpen access

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