Finite temperature mobility of a particle coupled to a fermion environment

Preprint

12 March 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9603088

Abstract

We study numerically the finite temperature and frequency mobility of a particle coupled by a local interaction to a system of spinless fermions in one dimension. We find that when the model is integrable (particle mass equal to the mass of fermions) the static mobility diverges. Further, an enhanced mobility is observed over a finite parameter range away from the integrable point. We present a novel analysis of the finite temperature static mobility based on a random matrix theory description of the many-body Hamiltonian.

Keywords

TEMPERATURE MOBILITY
FERMION ENVIRONMENT
FINITE TEMPERATURE
PARTICLE COUPLED
STATIC MOBILITY
FERMIONS

All Related Versions

Version 1, 1996-03-12, ArXiv
Published version: Physical Review B, 54 (7), 4375.

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