Work

Finite temperature spin diffusion in the Hubbard model in the strong coupling limit

Year: 2023

Type: article

Abstract: We investigate finite temperature spin transport in one spatial dimension by considering the spin-spin correlation function of the Hubbard model in the limiting case of infinitely strong repulsion. We find that in the absence of a magnetic field the transport is diffusive, and derive the spin diffusion constant. Our approach is based on asymptotic analysis of a Fredholm determinant representation. The obtained results are in agreement with Generalized Hydrodynamics approach.

Source: SciPost Physics

DOI: 10.21468/scipostphys.15.2.073

Authors: Oleksandr Gamayun, Arthur Hutsalyuk, Balázs Pozsgay, Mikhail Zvonarev

Institutions: Royal Institution of Great Britain, London Institute for Mathematical Sciences, University of Warsaw, Eötvös Loránd University, Université Paris-Saclay

Language: English

Topic: Quantum many-body systems

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond

Funder: Narodowa Agencja Wymiany Akademickiej

Award: G1601409864