Toward Numerically Exact Computation of Conductivity in the Thermodynamic Limit of Interacting Lattice Models

Author(s): Jeremija Kovačević, Michel Ferrero, and Jakša Vučičević Computing dynamical response functions in interacting lattice models is a long-standing challenge in condensed matter physics. In view of recent results, the dc resistivity ${ρ}_{\mathrm{dc}}$ in the weak-coupling regime of the Hubbard model is of great interest, yet it is not fully understood. The … [Phys. Rev. Lett. 135, 016502] Published Wed Jul 02, 2025