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Refined cyclic renormalization group in Russian Doll model

by Vedant Motamarri, Ivan M. Khaymovich, Alexander Gorsky

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Ivan Khaymovich
Submission information
Preprint Link: scipost_202410_00045v1  (pdf)
Date accepted: 2024-11-04
Date submitted: 2024-10-19 12:21
Submitted by: Khaymovich, Ivan
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
Specialties:
  • Condensed Matter Physics - Theory
  • High-Energy Physics - Theory
  • Mathematical Physics
Approach: Theoretical

Abstract

We discuss the Russian Doll Model (RDM) of superconductivity for finite energy levels. Previously, cyclic renormalization group (RG) and Efimov scaling were found in RDM for part of the equidistant spectrum and we generalize this observation in a few directions. We find that when the whole spectrum is considered, equidistancy condition is removed or diagonal disorder is added, the cyclicity of RG survives but the period of RG becomes energy dependent. The analytic analysis is supported with exact diagonalization.

Author indications on fulfilling journal expectations

  • Provide a novel and synergetic link between different research areas.
  • Open a new pathway in an existing or a new research direction, with clear potential for multi-pronged follow-up work
  • Detail a groundbreaking theoretical/experimental/computational discovery
  • Present a breakthrough on a previously-identified and long-standing research stumbling block

Author comments upon resubmission

Dear Editor,

Thank you for providing with the Referee reports on our manuscript entitled "Refined cyclic renormalization group in Russian Doll model."
After carefully reading the Referee reports, we see that both of them a quite positive and we agree with all the points, raised by both Referees.

Therefore, we have thoroughly addressed them, and we would like to resubmit the article for further consideration for SciPost Physics (please see the attached version of the revised manuscript with main changes highlighted by blue).

Thank you for your attention to our work.
We look forward to hearing from you.

Sincerely yours,
Vedant Motamarri, Alexander S. Gorsky, and Ivan M. Khaymovich

List of changes

Please see the list of the main changes below:
- Following the recommendation of the Referee 2, we have entirely rewritten the abstract, the introduction, and added some physical and/or clarifying comments throughout the text.
-We have emphasized the main goals of the paper and added the summary to some sections.
- We have also added the more physical outlook to the conclusion section and the examples, suggested by the Referee 2.
- We have added the references [13] and [22], where the Hamiltonians, similar to the one considered here, were used for the description of more physical papers. We don't see the reason to include other references, suggested by the Referee 2, as they just refer to the above two ones and don't add more relevance to the considered Hamiltonians.
- Following the recommendations of the Referee 1, we have added the discussion of the generalized Efimov scaling of [21] (former [20]) in the end of Sec. 3.
- We have also renamed Sec. 3 by adding the names of the paper [20], according to the Referee's suggestion.
- We have made our presentation more accessible to a broader audience.

Published as SciPost Phys. 17, 157 (2024)


Reports on this Submission

Report #1 by Vladimir Kravtsov (Referee 2) on 2024-10-28 (Invited Report)

Report

I carefully read the new revised version of the manuscript. I think the presentation is drastically improved, especially in the Introduction (which became more physical) and also in the summarizing comments at the end of most important sections. Also important references have been added.

Now I am convinced not only in the validity of the results but also in their accessibility for a non-prepared reader.

My conclusion is that now this manuscript may be published in SciPost Physics in its present form.

Requested changes

None

Recommendation

Publish (meets expectations and criteria for this Journal)

  • validity: high
  • significance: good
  • originality: good
  • clarity: good
  • formatting: good
  • grammar: excellent

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