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Record W4415816627 · doi:10.1063/10.0039547

Effect of superstrong magnetic fields on phase transition temperatures of neutron matter at supranuclear densities with unconventional Skyrme forces to superfluid states with anisotropic spin-triplet <i>p</i> -wave pairing

2025· article· en· W4415816627 on OpenAlex

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Bibliographic record

VenueLow Temperature Physics · 2025
Typearticle
Languageen
FieldPhysics and Astronomy
TopicPulsars and Gravitational Waves Research
Canadian institutionsnot available
Fundersnot available
KeywordsSuperfluidityPairingAnisotropyMagnetic fieldNeutronPhase transitionZeeman energyNuclear matterZeeman effectDipole

Abstract

fetched live from OpenAlex

In the framework of generalized non-relativistic Fermi-liquid approach analytic expressions have been derived for functions Tc(+)(n, H; Ec) and Tc(–)(n, H; Ec), which are phase transition (PT) temperatures of superdense spatially uniform pure neutron matter from normal to superfluid states with anisotropic spin-triplet p-wave pairing (similar to anisotropic superfluid phases 3He–A1 and 3He–A2) in steady and homogeneous superstrong magnetic fields H ≡ Z⋅1017 G (here 1 ≤ Z ≤ 10; the magnitude of the Zeeman energy of a neutron is |μn|⋅H &amp;lt; Ec ≪ ɛF(n), where μn &amp;lt; 0 is the magnetic dipole moment of a neutron, Ec = 16 and 10 MeV have been selected as two alternative versions of the cutoff energy, ɛF(n) is the Fermi energy of neutron matter at supranuclear densities n &amp;gt; n0, n0 = 0.17 fm−3). These functions Tc(±), which are valid for BSk parametrizations of the unconventional Skyrme forces from the so-called BSk family of the Brussels–Montreal group, depend nonlinearly on density n of neutron matter. The obtained formulas for Tc(±) contain not only terms with symmetrical and linearly field dependent splitting (as had been already derived for the “moderately strong” fields H ≡ Z⋅1017 G with 0 &amp;lt; Z ≤ 1), but also additional terms quadratically dependent on superstrong magnetic field H (in the range with 1 &amp;lt; Z ≤ 10), which lead to asymmetry and nonlinearity in splitting of phase transition temperatures Tc(±)(n, H; Ec) relative to the PT temperature Tc0(n; Ec) in zero field. Using the example of the unconventional BSk21 parameterization of Skyrme forces in superfluid neutron matter (SNM), it was found that the character of the behavior of the asymmetry in the splitting of the PT temperatures depending on the density of SNM also depends on the value of the cutoff energy Ec not only quantitatively, but also qualitatively. Phase transitions to superfluid states of such type might occur in liquid outer core of magnetars (strongly magnetized neutron stars) at n&amp;gt;∼⁡n0.

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Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.031
Threshold uncertainty score0.889

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.004
GPT teacher head0.263
Teacher spread0.259 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it