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Quantum vorticity: a not so effective field theory

by Gabriel Cuomo, Fanny Eustachon, Eren Firat, Brian Henning, Riccardo Rattazzi

Submission summary

Authors (as registered SciPost users): Gabriel Francisco Cuomo
Submission information
Preprint Link: scipost_202511_00069v1  (pdf)
Date submitted: Nov. 26, 2025, 4:24 p.m.
Submitted by: Gabriel Francisco Cuomo
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
Specialties:
  • Condensed Matter Physics - Theory
  • Fluid Dynamics
  • High-Energy Physics - Theory
Approach: Theoretical

Abstract

We provide a comprehensive picture for the formulation of the perfect fluid in the modern effective field theory formalism at both the classical and quantum level. Due to the necessity of decomposing the hydrodynamical variables $(\rho, p, u^\mu)$ into other internal degrees of freedom, the procedure is inherently not unique. We discuss and compare the different inequivalent formulations. These theories possess a peculiarity: the presence of an infinite dimensional symmetry implying a vanishing dispersion relation $\omega = 0$ for the transverse modes. This sets the stage for UV-IR mixing in the quantum theory, which we study in the different formulations focussing on the incompressible limit. We observe that the dispersion relation gets modified by quantum effects to become $\omega \propto \mathbf{k}^2$, where the fundamental excitations can be viewed as vortex-anti-vortex pairs. The spectrum exhibits infinitely many types of degenerate quanta. The unusual sensitivity to UV quantum fluctuations renders the implementation of the defining infinite symmetry somewhat subtle. However we present a lattice regularization that preserves a deformed version of such symmetry.

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

We thank the first and the third Referees for their reports and for taking the time to review our manuscript again in such detail. We provide further clarifications regarding the points raised in the response to their reports. We hope that these additional explanations and revisions have improved the clarity of the manuscript, addressing the concerns of the Referees.

We also noticed that the report from the second referee contains several statements and references that appear generic or possibly artificial. For instance, it cites a non-existent paper (“A. Smith et al., Quantized Vortex Models”) and raises questions about the $\xi$-dependence of classical solutions in $R_\xi$ gauges, but it is not clear what gauge symmetry the referee is talking about (no gauge fixing is discussed in our manuscript). For these reasons, we did not address the points raised in that report. We nevertheless considered it appropriate to bring this matter to the editor’s attention.
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Comments

Anonymous on 2025-11-26  [id 6078]

Disclosure of Generative AI use

The comment author discloses that the following generative AI tools have been used in the preparation of this comment:

Help with english grammar and typos

Please find in the attachment our response to the referee reports and a detailed list of changes made to the manuscript.

Attachment:

Different_Perfect_Fluid_Field_Theory_3fQtYRn.pdf