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Universality for Three Bosons with Large, Negative Effective Range: Aspects and Addenda
Nuclear Theory · Submitted 27 Jan 2024
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim A ground state exists only in the range $0.366\ldots\ge\xi\ge-8.72\ldots$, and excited states display self-similarity and Discrete Scale Invariance, with small corrections for nonzero $r_0$.
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The abstract, sentence by sentence
Resummed-Range Effective Field Theory is the consistent non-relativistic Effective Field Theory of point interactions in systems with large two-body scattering length $a$ and an effective range $r_0$ large in magnitude but negative. Its leading order is non-perturbative, and its observables depend only on the dimensionless ratio $\xi:=2r_0/a$ once $|r_0|$ is chosen as base unit. This presentation highlights aspects for three identical spinless bosons and adds details to a previous discussion [1]. At leading order, no three-body interaction is needed. A ground state exists only in the range $0.366\ldots\ge\xi\ge-8.72\ldots$, and excited states display self-similarity and Discrete Scale Invariance, with small corrections for nonzero $r_0$.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | Resummed-Range Effective Field Theory is the consistent non-relativistic Effective Field Theory of point interactions in systems with large two-body scattering length $a$ and an effective range $r_0$ large in magnitude but negative. | background 0.92 | 0.15 | 0.16 | asserted 1.00 |
| s1 | Its leading order is non-perturbative, and its observables depend only on the dimensionless ratio $\xi:=2r_0/a$ once $|r_0|$ is chosen as base unit. | background 0.64 | 0.31 | 0.13 | asserted 1.00 |
| s2 | This presentation highlights aspects for three identical spinless bosons and adds details to a previous discussion [1]. | contribution 0.96 | 0.65 | 0.04 | asserted 0.80 |
| s3 | At leading order, no three-body interaction is needed. | result 0.99 | 0.65 | 0.19 | asserted 1.00 |
| s4 | A ground state exists only in the range $0.366\ldots\ge\xi\ge-8.72\ldots$, and excited states display self-similarity and Discrete Scale Invariance, with small corrections for nonzero $r_0$. | result 1.00 | 0.72 | 0.38 | asserted 1.00 |
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Original abstract
Resummed-Range Effective Field Theory is the consistent non-relativistic Effective Field Theory of point interactions in systems with large two-body scattering length $a$ and an effective range $r_0$ large in magnitude but negative. Its leading order is non-perturbative, and its observables depend only on the dimensionless ratio $\xi:=2r_0/a$ once $|r_0|$ is chosen as base unit. This presentation highlights aspects for three identical spinless bosons and adds details to a previous discussion [1]. At leading order, no three-body interaction is needed. A ground state exists only in the range $0.366\ldots\ge\xi\ge-8.72\ldots$, and excited states display self-similarity and Discrete Scale Invariance, with small corrections for nonzero $r_0$.
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What it cites · 13 sentences without a confident label
Uses the method or tool of 1 paper
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Using an idea by Gattobigio [ref] , the trajectories are in this form parametrised with residuals of $≪10^-3$ by the $7$ constants of table [ref] via [equation]
More on the universal equation for Efimov states · A Curated Selection of Results · 0.93
Cites as background 1 paper
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[ref] for a recent review.
Nuclear effective field theory: status and perspectives · A Digest of the Formalism · 0.99
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