g-on Mean Field Theory of the t-J Model.

  • Basco Flordivino
    Department of Physics, University of Tokyo, 7–3–1 Hongo, Bunkyo–ku, Tokyo 113
  • Kohno Hiroshi
    Department of Physics, University of Tokyo, 7–3–1 Hongo, Bunkyo–ku, Tokyo 113
  • Fukuyama Hidetoshi
    Department of Physics, University of Tokyo, 7–3–1 Hongo, Bunkyo–ku, Tokyo 113
  • Baskaran Ganapathy
    Institute of Mathematical Science, Madras, India

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  • <i><i>g</i></i>-on Mean Field Theory of the<i><i>t</i></i>-<i><i>J</i></i>Model

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A new possible treatment of large-amplitude gauge-field fluctuations around theslave-boson mean-field theory for the t-J model has been proposed by attachinggauge flux to spinons and holons and then by treating them as g-ons which respectthe time-reversal symmetry. Using the thermodynamic distribution function ofg-ons, the optimum exclusion statistics has been determined in the planeof doping rate and temperature. The results indicate that slave fermions are favoredat low doping while slave bosons at high doping with intermediate statistics inbetween.

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