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Fermion Bags in the Massive Gross-Neveu Model

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Paper breakdownThe authors' claims, conditions and measurements, as JSON Signed receiptProof this review has not been altered
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J. Feinberg, A. Zee (ITP, UC Santa-Barbara)

High Energy Physics - Theory · Submitted 2 Oct 1996

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim We prove that the bags in this model are necessarily time dependent.

how it is stated · asserted 1.00 read the record →

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arXiv IDhep-th/9610009 (version 1)
Pith IDUN5UJLIB, Pith's permanent record of this paper and its review
CitationA. Zee (ITP, J. Feinberg, UC Santa-Barbara). "Fermion Bags in the Massive Gross-Neveu Model." arXiv:hep-th/9610009 (1996). https://pith.science/paper/UN5UJLIB
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,814 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.07 · states limitation 0.33 · human participants 0.01 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.10 · compares with prior results 0.69 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v1. Results and the main claim are underlined; .

As has long been known, it is energetically favorable for massive fermions to deform the homogeneous vacuum around them, giving rise to extended bag-like objects. We study this phenomenon non-perturbatively in a model field theory, the $1+1$ dimensional Massive Gross-Neveu model, in the large $N$ limit. We prove that the bags in this model are necessarily time dependent. We calculate their masses variationally and demonstrate their stability. We find a non-analytic behavior in these masses as we approach the standard massless Gross-Neveu model and argue that this behavior is caused by the kink-antikink threshold. This work extends our previous work to a non-integrable field theory.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 As has long been known, it is energetically favorable for massive fermions to deform the homogeneous vacuum around them, giving rise to extended bag-like objects. background 1.00 0.04 0.05 asserted 1.00
s1 We study this phenomenon non-perturbatively in a model field theory, the $1+1$ dimensional Massive Gross-Neveu model, in the large $N$ limit. method 0.51 0.88 0.04 asserted 0.88
s2 We prove that the bags in this model are necessarily time dependent. result 0.98 0.96 0.36 asserted 1.00
s3 We calculate their masses variationally and demonstrate their stability. result 0.61 0.97 0.22 asserted 1.00
s4 We find a non-analytic behavior in these masses as we approach the standard massless Gross-Neveu model and argue that this behavior is caused by the kink-antikink threshold. result 0.67 0.96 0.18 asserted 0.90
s5 This work extends our previous work to a non-integrable field theory. contribution 0.73 0.61 0.05 asserted 1.00

What kind of paper the classifier reports this is: theoretical result 1.00 · evidence from proof or derivation 0.96.

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  • references and citing sentences
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  • P abstract
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  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

As has long been known, it is energetically favorable for massive fermions to deform the homogeneous vacuum around them, giving rise to extended bag-like objects. We study this phenomenon non-perturbatively in a model field theory, the $1+1$ dimensional Massive Gross-Neveu model, in the large $N$ limit. We prove that the bags in this model are necessarily time dependent. We calculate their masses variationally and demonstrate their stability. We find a non-analytic behavior in these masses as we approach the standard massless Gross-Neveu model and argue that this behavior is caused by the kink-antikink threshold. This work extends our previous work to a non-integrable field theory.

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