NNStar: An end-to-end AI agent for nuclear matter and neutron star physics

arXiv:2607.13930 · nucl-th, astro-ph.HE, physics.comp-ph · Submitted 2026-07-15 · Read on arXiv

Yao Ma, Yong-Liang Ma, Jia-Ying Xiong

nucl-th, astro-ph.HE, physics.comp-ph

Submitted: 2026-07-15

Comments: 14 pages; comments are welcome

Code: https://github.com/AaronMahn/NM-rmf-benchmark-scheme

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Benchmark — 12× in this paper · explained in 2 episodes
• Core — 7× in this paper · explained in 2 episodes
• Model-Agnostic — 6× in this paper · explained in 2 episodes
• Grounding — 3× in this paper · explained in 3 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Adaptivity — 1× in this paper · explained in 1 episode
• Agent Skills — 1× in this paper · explained in 1 episode
• Agentic Loop — 1× in this paper · explained in 1 episode
• Alignment — 1× in this paper · explained in 1 episode
• Benchmarking — 1× in this paper · explained in 3 episodes
• Equation of State (EoS) — 1× in this paper · explained in 4 episodes
• Forward modeling — 1× in this paper · explained in 2 episodes
• Generative Model — 1× in this paper · explained in 2 episodes
• Generative Models — 1× in this paper · explained in 2 episodes
• Normalizing Flow — 1× in this paper · explained in 3 episodes
• Normalizing Flows — 1× in this paper · explained in 4 episodes
• Steering — 1× in this paper · explained in 2 episodes
• Verification — 1× in this paper · explained in 2 episodes

Sources

• The phase diagram of nuclear and quark matter at high baryon density
• Chiral symmetry and effective field theories for hadronic, nuclear and stellar matter
• From hadrons to quarks in neutron stars: a review
• Towards the Hadron-Quark Continuity Via a Topology Change in Compact Stars
• Neutron Stars and the Nuclear Equation of State
• Topology change, emergent symmetries and compact star matter
• Constraints on Phase Transitions in Neutron Star Matter
• An updated mass-radius analysis of the 2017-2018 NICER data set of PSR J0030+0451
• The Radius of the High-mass Pulsar PSR J0740+6620 with 3.6 yr of NICER Data
• A NICER View of the Nearest and Brightest Millisecond Pulsar: PSR J0437$\unicode{x2013}$4715
• A NICER view of the 1.4 solar-mass edge-on pulsar PSR J0614-3329
• Relativistic Mean-Field Hadronic Models under Nuclear Matter Constraints
• Symmetry Energy II: Isobaric Analog States
• Constraining the nuclear matter equation of state around twice saturation density
• Constraints on the Skyrme Equations of State from Properties of Doubly Magic Nuclei
• Implications of PREX-II on the equation of state of neutron-rich matter
• Machine learning and the physical sciences
• Exploring QCD matter in extreme conditions with Machine Learning
• Mapping neutron star data to the equation of state using the deep neural network
• Nuclear liquid-gas phase transition with machine learning

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• An Effective Upper Bound on the Pressure-to-Energy Density Ratio in Neutron Stars