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Anyon condensation in mixed-state topological order

by Ken Kikuchi, Kah-Sen Kam, Fu-Hsiang Huang

This Submission thread is now published as

Submission summary

Authors (as registered SciPost users): Fu-Hsiang Huang
Submission information
Preprint Link: scipost_202502_00050v2  (pdf)
Date accepted: Aug. 20, 2025
Date submitted: Aug. 2, 2025, 3:08 p.m.
Submitted by: Fu-Hsiang Huang
Submitted to: SciPost Physics Core
Ontological classification
Academic field: Physics
Specialties:
  • Condensed Matter Physics - Theory
  • High-Energy Physics - Theory
Approach: Theoretical

Abstract

We discuss anyon condensation in mixed-state topological order. The phases were recently conjectured to be classified by pre-modular fusion categories. Just like anyon condensation in pure-state topological order, a bootstrap analysis shows condensable anyons are given by connected \'etale algebras. We explain how to perform generic anyon condensation including non-invertible anyons and successive condensations. Interestingly, some condensations lead to pure-state topological orders. We clarify when this happens. We also compute topological invariants of equivalence classes.

List of changes

We changed the first ``Theorem^ph'' to ``Conjecture,'' and the following ``Remark'' accordingly.

We also modified the sentence before the first ``Theorem'' of the other three Theorems.

Published as SciPost Phys. Core 8, 072 (2025)


Reports on this Submission

Report #1 by Anonymous (Referee 1) on 2025-8-8 (Invited Report)

  • Cite as: Anonymous, Report on arXiv:scipost_202502_00050v2, delivered 2025-08-08, doi: 10.21468/SciPost.Report.11709

Strengths

see my previous report

Weaknesses

see my previous report

Report

With the status of the various propositions in the paper now clarified as conjectures or statements which follow from previously published mathematical papers I am happy to recommend publication of this paper. The examples and applications provide useful and interesting applications of category-theoretical results, which are likely to inspire future investigations.

Requested changes

none

Recommendation

Publish (meets expectations and criteria for this Journal)

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

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