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Bibliographic Details
Main Authors: Nayak, Mithilesh, Thoenniss, Julian, Sonner, Michael, Abanin, Dmitry A., Werner, Philipp
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2503.02848
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Table of Contents:
  • We implement the recently developed influence functional matrix product states approach as impurity solver in equilibrium and nonequilibrium dynamical mean field theory (DMFT) calculations of the single-band Hubbard model. The method yields numerically exact descriptions of metallic states without sharp spectral features, at a moderate numerical cost. Systems with narrow quasiparticle or spin-polaron peaks, as well as low-temperature Mott insulators provide more challenges, since these simulations require long time contours or high bond dimensions. A promising field of application is the DMFT simulation of nonequilibrium steady states, which we demonstrate with results for photo-doped Mott systems with long-lived doublon and holon populations.