Thermodynamics, strange quark matter, and strange stars

G.X. Peng; H.C. Chiang; P.Z. Ning

RECORD

Thermodynamics, strange quark matter, and strange stars

G.X. Peng, H.C. Chiang, P.Z. Ning

High Energy Physics - Phenomenology · Submitted 3 Mar 2000

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

The authors' main claim With our recently determined quark mass scaling, we study strange quark matter in this new thermodynamic treatment, which still indicates a possible absolute stability as previously found.

how it is stated · hedged possibility 1.00 read the record →

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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.

Open the compiled record

Compiled by classifier-1.13-20260917 via OpenRouter, question bank abstract-p1-20260923, 2026-09-23: 1 request, 4,798 input tokens, $0.0002 reported.

What the abstract itself states, as probabilities: claims first 0.04 · states limitation 0.35 · human participants 0.01 · controlled comparison 0.08 · randomized assignment 0.01 · states quantitative result 0.08 · compares with prior results 0.95 · mentions code or data availability 0.02.

The abstract, sentence by sentence

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

Because of the mass density-dependence, an extra term should be added to the expression of pressure. However, it should not appear in that of energy according to both the general ensemble theory and basic thermodynamic principle. We give a detail derivation of the thermodynamics with density-dependent particle masses. With our recently determined quark mass scaling, we study strange quark matter in this new thermodynamic treatment, which still indicates a possible absolute stability as previously found. However, the density behavior of the sound velocity is opposite to the previous finding, but consistent with one of our recent publication. We have also studied the structure of strange stars using the obtained equation of state.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	Because of the mass density-dependence, an extra term should be added to the expression of pressure.	background 0.45	0.22	0.08	asserted 0.93
s1	However, it should not appear in that of energy according to both the general ensemble theory and basic thermodynamic principle.	background 0.40	0.21	0.15	asserted 0.99
s2	We give a detail derivation of the thermodynamics with density-dependent particle masses.	method 0.69	0.95	0.06	asserted 0.98
s3	With our recently determined quark mass scaling, we study strange quark matter in this new thermodynamic treatment, which still indicates a possible absolute stability as previously found.	result 0.79	0.89	0.52	hedged possibility 1.00
s4	However, the density behavior of the sound velocity is opposite to the previous finding, but consistent with one of our recent publication.	result 0.99	0.86	0.12	asserted 0.92
s5	We have also studied the structure of strange stars using the obtained equation of state.	contribution 0.98	0.95	0.08	asserted 0.98

What kind of paper the classifier reports this is: theoretical result 0.99 · evidence from proof or derivation 0.97.

What was examined, and what was not

sources read

arXiv listing abstract v1

not examined

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

levels run

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

Because of the mass density-dependence, an extra term should be added to the expression of pressure. However, it should not appear in that of energy according to both the general ensemble theory and basic thermodynamic principle. We give a detail derivation of the thermodynamics with density-dependent particle masses. With our recently determined quark mass scaling, we study strange quark matter in this new thermodynamic treatment, which still indicates a possible absolute stability as previously found. However, the density behavior of the sound velocity is opposite to the previous finding, but consistent with one of our recent publication. We have also studied the structure of strange stars using the obtained equation of state.

Human review

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References

Forward citations

Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

Rotational enhancement and stability of protoquark stars during thermal evolution
astro-ph.HE 2026-01 conditional novelty 5.0 of 10

Rotating hot protoquark stars support up to ~40% more mass than nonrotating ones and show a clear thermal ordering, with all properties peaking in lepton-rich stages.
A Density Functional for Quark Matter with Screened Confinement Interactions
nucl-th 2026-10 reject novelty 4.0 of 10

The authors derive a coefficient for the known n^(2/3) interaction-energy density functional of quark matter by assuming the confinement screening scale is proportional to the Fermi momentum.

How the literature uses it

7 arXiv papers cite this in 14 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers whose main result relates to this one's

Found among the papers closest to this one by title and main claim. Pith's classifier compared each pair's main results and a second model family confirmed the relation; checked against two further families, shown conflicts agreed 118 times in 120 and shown same results 218 times in 239. The quoted sentence is the other paper's main claim.

States the same result 1 paper

In this treatment, strange quark matter in bulk still has the possibility of absolute stability.

Mass formulas and thermodynamic treatment in the mass-density-dependent model of strange quark matter · 0.80

Papers citing it · 9 sentences without a confident label

Contests it 1 paper

However, as emphasized by Yin and Su [ref] the reformulation presented in [ref] is also inconsistent because in their formulae, the variable that are kept constant in the partial derivatives were not treated properly for some quantities.

Cold dense quark matter with phenomenological medium effects: a self-consistent formulation of the quark-mass density-dependent model · Introduction · contest 0.86

Cites it as support 1 paper

As proved in Refs. [ref] that any consistent thermodynamic treatment must ensure that $δ=P-n^2d/dn(E/n)=0$ at arbitrary density.

Cold quark matter in a quasiparticle model: thermodynamic consistency and stellar properties · Thermodynamic inconsistency in the conventional version of quasiparticle model · 0.98

Cites it as background 3 papers

To circumvent this problem, a different version of the QMDDM was proposed [ref] .

Cold dense quark matter with phenomenological medium effects: a self-consistent formulation of the quark-mass density-dependent model · Introduction · 0.80
an infinitely large system of quark matter [ref] .

Proto-neutron stars with quark cores · Finite Temperature Formalism · 0.90
Within this context, the QMDDM has been a topic of discussion in the literature for decades (see e.g. [ref] and references therein).

Excluded volume effects in the quark-mass density-dependent model: implications for the equation of state and compact star structure · Introduction · 1.00

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