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. © 2011 American Physical Society.
Spin-supersolid phase in Heisenberg chains: A characterization via matrix product states with periodic boundary conditions
ROSSINI, DAVIDE;
2011-01-01
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. © 2011 American Physical Society.File in questo prodotto:
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