Finite-temperature Properties of the Fermi-Hubbard Model on the Honeycomb Lattice

ORAL

Abstract

We study thermodynamic properties of the Fermi-Hubbard model on the honeycomb lattice utilizing the numerical linked-cluster expansion, which is exact in the thermodynamic limit, and quantum Monte Carlo simulations. We obtain the equation of state, double occupancy, entropy and spin correlations for a wide range of temperatures, chemical potentials, and interaction strengths. Employing a local density approximation, we study properties of the system in the presence of a harmonic trapping potential and compare the efficiency of various adiabatic cooling schemes to those obtained for such model on the square lattice.

–

Authors

  • Baoming Tang

    • Georgetown University

  • Ehsan Khatami

    • Georgetown University

  • Thereza Paiva

    • Universidade Federal do Rio de Janeiro
    • Instituto de Fisica, Universidade Federal do Rio de Janeiro, Brazil

  • Marcos Rigol

    • Georgetown University
    • Department of Physics, Georgetown University, Washington DC 20057, USA