Exploring QCD matter in extreme conditions with Machine Learning

K Zhou, L Wang, LG Pang, S Shi - Progress in Particle and Nuclear Physics, 2024 - Elsevier
In recent years, machine learning has emerged as a powerful computational tool and novel
problem-solving perspective for physics, offering new avenues for studying strongly …

Strongly interacting matter exhibits deconfined behavior in massive neutron stars

E Annala, T Gorda, J Hirvonen, O Komoltsev… - Nature …, 2023 - nature.com
Neutron-star cores contain matter at the highest densities in our Universe. This highly
compressed matter may undergo a phase transition where nuclear matter melts into …

Equation of State of Cold Quark Matter to

T Gorda, R Paatelainen, S Säppi, K Seppänen - Physical Review Letters, 2023 - APS
Accurately understanding the equation of state (EOS) of high-density, zero-temperature
quark matter plays an essential role in constraining the behavior of dense strongly …

Ab-initio QCD Calculations Impact the Inference of the Neutron-star-matter Equation of State

T Gorda, O Komoltsev, A Kurkela - The Astrophysical Journal, 2023 - iopscience.iop.org
We demonstrate that ab-initio calculations in QCD at high densities offer significant and
nontrivial information about the equation of state of matter in the cores of neutron stars …

Evidence against a strong first-order phase transition in neutron star cores: Impact of new data

L Brandes, W Weise, N Kaiser - Physical Review D, 2023 - APS
With the aim of exploring the evidence for or against phase transitions in cold and dense
baryonic matter, the inference of the sound speed and equation of state for dense matter in …

QCD constraints on isospin-dense matter and the nuclear equation of state

R Abbott, W Detmold, M Illa, A Parreño, RJ Perry… - Physical Review Letters, 2025 - APS
Understanding the behavior of dense hadronic matter is a central goal in nuclear physics as
it governs the nature and dynamics of astrophysical objects such as supernovae and …

Plausible presence of new state in neutron stars with masses above 0.98 MTOV

MZ Han, YJ Huang, SP Tang, YZ Fan - Science Bulletin, 2023 - Elsevier
We investigate the neutron star (NS) equation of state (EOS) by incorporating multi-
messenger data of GW170817, PSR J0030+ 0451, PSR J0740+ 6620, and state-of-the-art …

Spanning the full range of neutron star properties within a microscopic description

T Malik, M Ferreira, MB Albino, C Providência - Physical Review D, 2023 - APS
The high-density behavior of nuclear matter is analyzed within a relativistic mean field
description with nonlinear meson interactions. To assess the model parameters and their …

Maximum gravitational mass inferred at about 3% precision with multimessenger data of neutron stars

YZ Fan, MZ Han, JL Jiang, DS Shao, SP Tang - Physical Review D, 2024 - APS
The maximal gravitational mass of nonrotating neutron stars (M TOV) is one of the key
parameters of compact objects and only loose bounds can be set based on the first …

Astrophysical equation-of-state constraints on the color-superconducting gap

A Kurkela, K Rajagopal, R Steinhorst - Physical Review Letters, 2024 - APS
We demonstrate that astrophysical constraints on the dense-matter equation of state place
an upper bound on the color-superconducting gap in dense matter above the transition from …