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High Performance Computing in Science and Engineering, Munich 2004 pp 309–318Cite as

DCA for the 2D Hubbard Model at T → 0

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Abstract

We discuss single particle dynamics of the half-filled 2D Hubbard model at T → 0 calculated within the dynamical cluster approximation, using numerical renormalization group as non-perturbative cluster solver, which requires the use of parallel architectures with large number of processors and memory. In addition, fast temporal storage for large out-of-core matrices is needed. The results obtained indicate that the half-filled 2D Hubbard model at T → 0 is a paramagnetic insulator for all values of the Coulomb interaction U in strong contrast to weak-coupling theories.

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Author information

Authors and Affiliations

  1. Institute for Theoretical Physics, University of Göttingen, Tammanstr. 1, 37077, Göttingen, Germany

    Thomas Pruschke

  2. Center for Electronic Correlations and Magnetism Theoretical Physics III, Institute for Physics, University of Augsburg, 86135, Augsburg, Germany

    Robert Zitzler

  3. Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, TN, 37831-6164, USA

    Thomas A. Maier

  4. Department of Physics, University of Cincinnati, Cincinnati, OH, 45221, USA

    Mark Jarrell

Authors
  1. Thomas Pruschke
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  2. Robert Zitzler
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  3. Thomas A. Maier
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  4. Mark Jarrell
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Editor information

Editors and Affiliations

  1. Institut für Aerodynamik und Gasdynamik, Universität Stuttgart, Pfaffenwaldring 21, 70550, Stuttgart, Germany

    Siegfried Wagner

  2. Institut für Theoretische Physik und Astrophysik, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany

    Werner Hanke

  3. Lehrstuhl für Rechnertechnik und Rechnerorganisation, Institut für Informatik, Technische Universität München, Boltzmannstraße 3, 85748, Garching, Germany

    Arndt Bode

  4. Lehrstuhl für Strömungsmechanik, Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstraße 4, 91058, Erlangen, Germany

    Franz Durst

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© 2005 Springer-Verlag Berlin Heidelberg

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Pruschke, T., Zitzler, R., Maier, T.A., Jarrell, M. (2005). DCA for the 2D Hubbard Model at T → 0. In: Wagner, S., Hanke, W., Bode, A., Durst, F. (eds) High Performance Computing in Science and Engineering, Munich 2004. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-26657-7_28

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