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

By Davide Rossini, Vittorio Giovannetti and Rosario Fazio

Abstract

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.Comment: 4+ pages, 5 figure

Topics: Condensed Matter - Strongly Correlated Electrons, Quantum Physics
Year: 2011
DOI identifier: 10.1103/PhysRevB.83.140411
OAI identifier: oai:arXiv.org:1102.3545
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