Fermi-Edge Singularity with Backscattering in the Luttinger-Liquid Model
Condensed Matter
2009-10-22 v1
Abstract
We study the response of the interacting electron gas in one dimension on the local external potential. In the low frequency limit the power-law singularities are essentially modifyed by backscattering effects which, in the case of zero forward scattering, result in the universal critical exponent depending only on the Luttinger-liquid interactions. The results obtained may be used to describe singular responses of the 1D boson chains.
Cite
@article{arxiv.cond-mat/9306040,
title = {Fermi-Edge Singularity with Backscattering in the Luttinger-Liquid Model},
author = {N. V. Prokof'ev},
journal= {arXiv preprint arXiv:cond-mat/9306040},
year = {2009}
}
Comments
11 pages in LaTex, UBCTP-NP-93-003