Conductivity of quantum-spin chains: A Quantum Monte Carlo approach

Preprint

15 April 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0204320

Abstract

We discuss zero-frequency transport properties of various spin-1/2 chains. We show, that a careful analysis of Quantum Monte-Carlo (QMC) data on the imaginary axis allows to distinguish between intrinsic ballistic and diffusive transport. We determine the Drude weight, current-relaxation life-time and the mean-free path for integrable and a non-integrable quantum-spin chain. We discuss, in addition, some phenomenological relations between various transport-coefficients and thermal response functions.

Keywords

QUANTUM MONTE CARLO
QUANTUM SPIN CHAIN
RESPONSE FUNCTIONS
CARLO APPROACH
SPIN CHAIN
TRANSPORT
LIFE

All Related Versions

Version 1, 2002-04-15, ArXiv
Published version: Physical Review B, 66 (9), 094403.

This publication has 0 references indexed in Scilit: