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DMRG Investigation of Stripe Formation in Doped Hubbard Ladders

In: High Performance Computing in Science and Engineering, Munich 2004

Author

Listed:
  • Georg Hager

    (Regionales Rechenzentrum Erlangen (RRZE))

  • Gerhard Wellein

    (Regionales Rechenzentrum Erlangen (RRZE))

  • Eric Jeckelmann

    (Johannes Gutenberg-Universität Mainz, Institut für Physik, KOMET 337)

  • Holger Fehske

    (Ernst-Moritz-Arndt-Universität Greifswald, Institut für Physik)

Abstract

Using a parallelized density matrix renormalization group (DMRG) code we demonstrate the potential of the DMRG method by calculating ground-state properties of two-dimensional Hubbard models. For 7 × 6, 11 × 6 and 14 × 6 Hubbard ladders with doped holes and cylindrical boundary conditions (BC), open in x-direction and periodic in the 6-leg y-direction, we comment on recent conjectures about the appearance of stripe-like features in the hole and spin densities. In addition we present results for the half-filled 4 ×4 system with periodic BC, advance to the 6 × 6 case and pinpoint the limits of the current approach.

Suggested Citation

  • Georg Hager & Gerhard Wellein & Eric Jeckelmann & Holger Fehske, 2005. "DMRG Investigation of Stripe Formation in Doped Hubbard Ladders," Springer Books, in: Siegfried Wagner & Werner Hanke & Arndt Bode & Franz Durst (ed.), High Performance Computing in Science and Engineering, Munich 2004, pages 339-347, Springer.
    • Handle: RePEc:spr:sprchp:978-3-540-26657-0_31
    DOI: 10.1007/3-540-26657-7_31
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