Spin-stripes in the Hubbard model: a combined DMFT and Bethe-Salpeter analysis
Strongly Correlated Electrons
2026-04-29 v1
Abstract
The Hubbard model is known to accommodate various electronic orders, including stripes, which are important for understanding the physics of cuprates. We study spin-stripe order in the square lattice Hubbard model as a function of doping and temperature, by solving the Bethe-Salpeter equation with the local vertex from dynamical mean field theory (DMFT), both inside and outside the antiferromagnetic phase. We find broad regions of horizontal/vertical spin stripes at low temperatures for the model with and without next-nearest neighbor hopping. Their wavelength depends on hole doping in a nonlinear fashion, and is highly sensitive to the ratio of nearest and next-nearest neighbor hoppings.
Keywords
Cite
@article{arxiv.2509.24439,
title = {Spin-stripes in the Hubbard model: a combined DMFT and Bethe-Salpeter analysis},
author = {Ruslan Mushkaev and Francesco Petocchi and Shintaro Hoshino and Philipp Werner},
journal= {arXiv preprint arXiv:2509.24439},
year = {2026}
}