Unified description of charge and spin excitations of stripes in cuprates

TL;DR

This paper presents a unified theoretical framework for understanding charge and spin excitations in stripe phases of cuprates, successfully explaining various experimental observations using Hubbard models and the Gutzwiller approximation.

Contribution

It introduces a comprehensive approach that simultaneously describes magnetic and charge excitations in cuprate stripes, bridging multiple experimental results with a single theoretical model.

Findings

Charge and spin excitations are effectively modeled within Hubbard frameworks.

The approach reproduces experimental charge profiles and incommensurability trends.

Magnetic and optical excitations are consistently explained across different experiments.

Abstract

We study stripes in cuprates within the one-band and the three-band Hubbard model. Magnetic and charge excitations are described within the time-dependent Gutzwiller approximation. A variety of experiments (charge profile from resonant soft X-ray scattering, incommensurability vs. doping, optical excitations, magnetic excitations, etc.) are described within the same approach.