Spin Gaps in a Frustrated Heisenberg Model forCaV4O9

1996/04/20 by Steven R. White · 3 citations
Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Density matrix renormalization group #Extrapolation #Heisenberg model #Limit (mathematics) #Mathematical physics #Mathematics #Physics #Physics of Superconductivity and Magnetism #Quantum mechanics #Renormalization group #Spin (aerodynamics) #Statistics #Theoretical and Computational Physics #Thermodynamics #cond-mat

paper · pdf · doi:10.1103/physrevlett.77.3633

10 pages, with 4 Postscript figures

arxiv created 1996/04/20 · openalex publication_date 1996/10/21 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

I report results of a density matrix renormalization group (DMRG) study of a model for the two-dimensional spin-gapped system CaV₄O₉. This study represents the first time that DMRG has been used to study a two-dimensional system on large lattices, in this case as large as 24\ifmmode×\else\texttimes\fi11, allowing extrapolation to the thermodynamic limit. I present a substantial improvement to the DMRG algorithms which makes these calculations feasible.

Citations

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