Dynamical Mean-Field calculation of kinetic energy for the one-band doped Hubbard Model

ORAL

Abstract

We present a Dynamical Mean-Field calculation of the interaction, doping and temperature dependence of the kinetic energy for the one-band doped Hubbard model. We combine Quantum Monte-Carlo and an improved finite temperature Exact Diagonalization method to obtain results over a wide range of temperatures. The overlapping temperature region for the two methods enables an improved error estimation. The results are compared to recent experimental data.

*This work is supported by Columbia University and \'{E}cole Polytechnique through the `Alliance' Program and the NSF-DMR grant No. 0431350

Authors

  • Armin B. Comanac

    • Columbia University Department of Physics, NY 10027 USA
  • Luca de' Medici

    • \'{E}cole Polytechnique - CPHT, F91128 PALAISEAU CEDEX FRANCE
  • Andrew Millis

    • Columbia University
    • Columbia University Department of Physics, NY 10027 USA
    • Department of Physics, Columbia University