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NONEXISTENCE OFd-WAVE-SUPERCONDUCTIVITY IN THE QUANTUM MONTE CARLO SIMULATION OF THE HUBBARD MODEL

Author

Listed:
  • HANS-GEORG MATUTTIS

    (Department of Mechanical Engineering and Intelligent Systems, The University of Electro-Communications, Chofu, Chofugaoka 1-5-1, Tokyo 182-8585, Japan)

  • NOBUYASU ITO

    (Department of Applied Physics, School of Engineering, The University of Tokyo, Bunkyo-ku, Tokyo 113-8646, Japan)

Abstract

For the existence ofd-wave-superconductivity in the Hubbard model, previous quantum Monte Carlo results by other authors, which showed a power law increase of thed-wave susceptibility, seem to contradict a recently published theorem. We show those quantum Monte Carlo calculations were numerically contaminated, analyze the numerical problem and propose a numerically more stable computing scheme.

Suggested Citation

  • Hans-Georg Matuttis & Nobuyasu Ito, 2005. "NONEXISTENCE OFd-WAVE-SUPERCONDUCTIVITY IN THE QUANTUM MONTE CARLO SIMULATION OF THE HUBBARD MODEL," International Journal of Modern Physics C (IJMPC), World Scientific Publishing Co. Pte. Ltd., vol. 16(06), pages 857-866.
    • Handle: RePEc:wsi:ijmpcx:v:16:y:2005:i:06:n:s0129183105007571
    DOI: 10.1142/S0129183105007571
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