Spectral properties of one-dimensional spiral spin density wave states

TL;DR

This paper analytically characterizes the spectral properties of one-dimensional spiral spin density wave states, revealing their dependence on interactions and providing signatures for experimental detection.

Contribution

It offers a comprehensive analytical description of spectral functions, local density of states, and optical conductivity for SSDW states in 1D systems with interactions.

Findings

Spectral function and density of states depend on interaction strength.

Identified collective modes characteristic of SSDW states.

Provided signatures for experimental detection of SSDW states.

Abstract

We provide a full characterization of the spectral properties of spiral spin density wave (SSDW) states which emerge in one-dimensional electron systems coupled to localized magnetic moments or quantum wires with spin-orbit interactions. We derive analytic results for the spectral function, local density of states and optical conductivity in the low-energy limit by using field theory techniques. We identify various collective modes and show that the spectrum strongly depends on the interaction strength between the electrons. The results provide characteristic signatures for an experimental detection of SSDW states.