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Open Quantum Systems Decoherence

Systematic compactification of the two-channel Kondo model. II. Comparative study of scaling and universality

arXiv
Authors: Aleksandar Ljepoja, Nayana Shah, C. J. Bolech

Year

2023

Paper ID

56015

Status

Preprint

Abstract Read

~2 min

Abstract Words

119

Citations

N/A

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.

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  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
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  • 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...

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2308.03590 [2] arXiv https://arxiv.org/abs/2308.03590 [3] Publisher https://arxiv.org/abs/2308.03590

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