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Shallow Trimers of Two Identical Fermions and One Particle in Resonant Regimes

by Pascal Naidon, Ludovic Pricoupenko, Christiane Schmickler

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Submission summary

Authors (as registered SciPost users): Pascal Naidon
Submission information
Preprint Link:  (pdf)
Date accepted: 2022-05-09
Date submitted: 2022-03-28 02:46
Submitted by: Naidon, Pascal
Submitted to: SciPost Physics
Ontological classification
Academic field: Physics
  • Atomic, Molecular and Optical Physics - Theory
  • Quantum Physics
Approach: Theoretical


We consider two identical fermions interacting in the p-wave channel. Each fermion also interacts with another particle in the vicinity of an s-wave resonance. We find that in addition to the Kartavtsev-Malykh universal trimer states resulting from the s-wave particle-fermion interaction, the fermion-fermion p-wave interaction induces one or two shallow trimers in a large domain of the control parameters, including a borromean regime where the ground-state trimer exists in the absence of dimers at any mass ratio between the fermions and the particle. A generic picture of the trimer spectrum emerges from this work in terms of the low-energy parameters of the interactions.

Published as SciPost Phys. 12, 185 (2022)

Reports on this Submission

Anonymous Report 2 on 2022-4-13 (Invited Report)


The authors have satisfactorily answered all of my comments. I particularly applaud the authors' significantly enhanced discussion of how they arrive at their main equations, including a new Appendix, as well as the new section on the potential for experimental observation. I am therefore happy to recommend publication in SciPost Physics.

Requested changes

There is a typo in "Schrödinger" at the bottom of page 17, first column.

  • validity: top
  • significance: high
  • originality: high
  • clarity: high
  • formatting: excellent
  • grammar: perfect

Anonymous Report 1 on 2022-4-3 (Invited Report)


The comments raised in the first round of refereeing have been answered satisfactorily, and I find the manuscript improved and suitable for recommendation to be published in SciPost Physics.

  • validity: -
  • significance: -
  • originality: -
  • clarity: -
  • formatting: -
  • grammar: -

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