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Coulomb interaction revised in the presence of material with negative permittivity

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A. A. Rangelov, N. Karchev

Classical Physics · Submitted 28 Oct 2009

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

The authors' main claim Counterintuitively the repulsion force between two equal electric charges in a vacuum, stated by the Coulomb law, turn into the attraction force between the same electric charges when they are placed next to a material with negative permittivity and the distance between them is larger than some critical distance.

how it is stated · asserted 1.00 read the record →

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arXiv ID0910.5307 (version 3)
Pith IDBVGVE4NE, Pith's permanent record of this paper and its review
CitationA. A. Rangelov, N. Karchev. "Coulomb interaction revised in the presence of material with negative permittivity." arXiv:0910.5307 (2009). https://pith.science/paper/BVGVE4NE
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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, 4,190 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.14 · human participants 0.01 · controlled comparison 0.27 · randomized assignment 0.01 · states quantitative result 0.09 · compares with prior results 0.12 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v3. Results and the main claim are underlined; .

Coulomb law is one of the fundamental laws in Physics. It describes the magnitude of the electrostatic force between two electric charges. Counterintuitively the repulsion force between two equal electric charges in a vacuum, stated by the Coulomb law, turn into the attraction force between the same electric charges when they are placed next to a material with negative permittivity and the distance between them is larger than some critical distance. As a result the equally charged particles "crystallize" occupying equilibrium positions. We prove this claim with the method of images for two charged particles placed next to a material with negative permittivity.

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 Coulomb law is one of the fundamental laws in Physics. background 1.00 0.02 0.01 asserted 1.00
s1 It describes the magnitude of the electrostatic force between two electric charges. background 1.00 0.03 0.02 asserted 1.00
s2 Counterintuitively the repulsion force between two equal electric charges in a vacuum, stated by the Coulomb law, turn into the attraction force between the same electric charges when they are placed next to a material with negative permittivity and the distance between them is larger than some critical distance. result 0.98 0.44 0.90 asserted 1.00
s3 As a result the equally charged particles "crystallize" occupying equilibrium positions. interpretation 0.65 0.55 0.30 asserted 1.00
s4 We prove this claim with the method of images for two charged particles placed next to a material with negative permittivity. method 0.88 0.94 0.10 asserted 1.00

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

What was examined, and what was not

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  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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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

Coulomb law is one of the fundamental laws in Physics. It describes the magnitude of the electrostatic force between two electric charges. Counterintuitively the repulsion force between two equal electric charges in a vacuum, stated by the Coulomb law, turn into the attraction force between the same electric charges when they are placed next to a material with negative permittivity and the distance between them is larger than some critical distance. As a result the equally charged particles "crystallize" occupying equilibrium positions. We prove this claim with the method of images for two charged particles placed next to a material with negative permittivity.

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