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

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 diffus...

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Bibliographic Details
Main Author: Oleksandr Gamayun, Arthur Hutsalyuk, Balázs Pozsgay, Mikhail B. Zvonarev
Format: Article
Language:English
Published: SciPost 2023-08-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.15.2.073