Properties of the chiral spin liquid state in generalized spin ladders

TL;DR

This paper investigates the properties of a chiral spin liquid state in generalized spin ladders, analyzing phase diagrams and correlation functions through Bethe Ansatz and numerical methods, revealing insights into chiral and magnetic behaviors.

Contribution

It introduces a solvable model of coupled quantum spin chains with explicit symmetry breaking, providing a comprehensive analysis of its phase diagram and correlation functions.

Findings

Complete magnetic phase diagram determined

Correlation function asymptotics characterized

Chiral properties analyzed in integrable and nonintegrable cases

Abstract

We study zero temperature properties of a system of two coupled quantum spin chains subject to fields explicitly breaking time reversal symmetry and parity. Suitable choice of the strength of these fields gives a model soluble by Bethe Ansatz methods which allows to determine the complete magnetic phase diagram of the system and the asymptotics of correlation functions from the finite size spectrum. The chiral properties of the system for both the integrable and the nonintegrable case are studied using numerical techniques.