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Quantum entanglement in trimer spin-1/2 Heisenberg chains with antiferromagnetic coupling

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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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O.M. Del Cima, D.H.T. Franco, S.L.L. da Silva

Quantum Physics · Submitted 24 Feb 2015

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

The authors' main claim A correlation among their decoherence temperatures and their respective exchange coupling constants is established.

how it is stated · asserted 1.00 read the record →

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arXiv ID1502.07000 (version 2)
Pith IDVPF6MNWS, Pith's permanent record of this paper and its review
CitationD.H.T. Franco, O.M. Del Cima, S.L.L. da Silva. "Quantum entanglement in trimer spin-1/2 Heisenberg chains with antiferromagnetic coupling." arXiv:1502.07000 (2015). https://pith.science/paper/VPF6MNWS
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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, 4,276 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.95 · states limitation 0.08 · human participants 0.02 · controlled comparison 0.04 · randomized assignment 0.01 · states quantitative result 0.13 · compares with prior results 0.11 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

The quantum entanglement measure is determined, for the first time, for antiferromagnetic trimer spin-1/2 Heisenberg chains. The physical quantity proposed to measure the entanglement is the distance between states by adopting the Hilbert-Schmidt norm. The method is applied to the new magnetic Cu(II) trimer system, 2b.3CuCl_2.2H_2O, and to the trinuclear Cu(II) halide salt, (3MAP)_2Cu_2Cl_8. The decoherence temperature, above which the entanglement is suppressed, is determined for the both systems. A correlation among their decoherence temperatures and their respective exchange coupling constants is established.

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 The quantum entanglement measure is determined, for the first time, for antiferromagnetic trimer spin-1/2 Heisenberg chains. contribution 0.91 0.89 0.33 asserted 1.00
s1 The physical quantity proposed to measure the entanglement is the distance between states by adopting the Hilbert-Schmidt norm. method 0.97 0.76 0.08 asserted 1.00
s2 The method is applied to the new magnetic Cu(II) trimer system, 2b.3CuCl_2.2H_2O, and to the trinuclear Cu(II) halide salt, (3MAP)_2Cu_2Cl_8. contribution 0.58 0.85 0.07 asserted 0.99
s3 The decoherence temperature, above which the entanglement is suppressed, is determined for the both systems. result 0.99 0.92 0.19 asserted 1.00
s4 A correlation among their decoherence temperatures and their respective exchange coupling constants is established. result 0.94 0.89 0.40 asserted 1.00

What kind of paper the classifier reports this is: method or tool 0.33 · evidence from simulation or computation 0.50.

What was examined, and what was not

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not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
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  • P abstract
not run
  • 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

The quantum entanglement measure is determined, for the first time, for antiferromagnetic trimer spin-1/2 Heisenberg chains. The physical quantity proposed to measure the entanglement is the distance between states by adopting the Hilbert-Schmidt norm. The method is applied to the new magnetic Cu(II) trimer system, 2b.3CuCl_2.2H_2O, and to the trinuclear Cu(II) halide salt, (3MAP)_2Cu_2Cl_8. The decoherence temperature, above which the entanglement is suppressed, is determined for the both systems. A correlation among their decoherence temperatures and their respective exchange coupling constants is established.

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