Metallic stripes: separation of spin-, charge-, and string fluctuation

TL;DR

This paper develops a theoretical model for a one-dimensional metallic system influenced by stripe-like structures, incorporating spin, charge, and string fluctuations, inspired by cuprate stripe phenomena.

Contribution

It introduces a long-wavelength theory combining Luttinger liquid behavior with independent string modes, based on the assumption of a localized, charge-incompressible reference state.

Findings

Derivation of a coupled spin-charge-string fluctuation model

Identification of independent string mode sector

Extension of Luttinger liquid theory to include string dynamics

Abstract

Inspired by the cuprate stripes, the problem of a one dimensional metal living on a delocalized trajectory in two dimensional space is considered. Under the assumption that a localized and charge incompressible reference string state exists, the long wavelength theory is deduced which corresponds to a Luttinger liquid with an additional sector of independent string modes.