Systematic compactification of the two-channel Kondo model. II. Comparative study of scaling and universality
Abstract
Following up on the systematic compactification of the two-channel Kondo model (and its multichannel extensions; arXiv:2308.03569 (companion paper I)) and the demonstration of its validity over the past proposal of compactification, we resort to a study of scaling using Anderson's simple poor man's procedure to carry out a comparative study of these two and the original model. By doing so we unveil a universal agreement among the three models in how they flow upon scaling, and suggest the general limits of such a concordance. In this way we further elucidate the conditions under which the standard simplifications implicit in many bosonization-based mappings (particularly of quantum impurity models) can be used reliably, and when the consistent bosonization-debosonization approach is needed.
Keywords
Cite
@article{arxiv.2308.03590,
title = {Systematic compactification of the two-channel Kondo model. II. Comparative study of scaling and universality},
author = {Aleksandar Ljepoja and Nayana Shah and C. J. Bolech},
journal= {arXiv preprint arXiv:2308.03590},
year = {2024}
}
Comments
19 pages, 9 figures