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相关论文: Phenomenological QCD equations of state for neutro…

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The properties of dense QCD matter are delineated through the construction of equations of state which should be consistent with the low and high density limits of QCD, nuclear laboratory experiments, and the neutron star observations.…

核理论 · 物理学 2019-12-12 Toru Kojo

We discuss the 3-window modeling of cold, dense QCD matter equations of state at density relevant to neutron star properties. At low baryon density, n_B < ~ 2n_s (n_s: nuclear saturation density), we utilize purely hadronic equations of…

高能物理 - 唯象学 · 物理学 2016-04-20 Toru Kojo

We discuss cold dense QCD by examining constraints from neutron stars, nuclear experiments, and QCD calculations at low and high baryon density. The two solar mass constraint and suggestive small radii (10~13 km) of neutron stars constrain…

高能天体物理现象 · 物理学 2017-02-28 Toru Kojo

The properties of dense QCD matter are delineated through the construction of equations of state which should be consistent with QCD calculations in the low and high density limits, nuclear laboratory experiments, and the neutron star…

高能天体物理现象 · 物理学 2019-09-04 Toru Kojo

We delineate the properties of dense QCD matter through equations of state constrained by the neutron star observations. The two solar mass constraint, the radius constraint of 11-13 km, and the causality constraint on the speed of sound,…

核理论 · 物理学 2017-12-19 Toru Kojo

Neutron stars are cosmic laboratories to study dense matter in Quantum Chromodynamics (QCD). The observable mass-radius relations of neutron stars are determined by QCD equations of state, and can reflect the properties of QCD phase…

核理论 · 物理学 2021-05-04 Toru Kojo

I make a brief review about the QCD phases and the equation of state inferred from the neutron star data. Along the temperature axis at low baryon density, the QCD phase transition is a smooth crossover, and it is a natural extension of our…

高能物理 - 唯象学 · 物理学 2025-05-01 Kenji Fukushima

In this conference-proceedings contribution, we review recent advances in placing model-independent constraints on the properties of cold and dense QCD matter inside neutron stars. In addition to introducing new bounds for the Equation of…

高能天体物理现象 · 物理学 2019-04-03 Eemeli Annala , Tyler Gorda , Aleksi Kurkela , Joonas Nättilä , Aleksi Vuorinen

We construct an equation of state for massive neutron stars based on quantum chromodynamics phenomenology. Our primary purpose is to delineate the relevant ingredients of equations of state that simultaneously have the required stiffness…

高能物理 - 唯象学 · 物理学 2015-03-05 Toru Kojo , Philip D. Powell , Yifan Song , Gordon Baym

We investigate properties of nuclear matter, equation of state (EOS) of neutron stars and its mass-radius relation in a hard-wall AdS/QCD model by regarding baryons as solitonic configurations in gauge fields. Compared with previous…

核理论 · 物理学 2025-11-07 Jun-Shuai Wang , Li-Kang Yang , Yin-Fang Liu , Yong-Liang Ma

We review the equation of state of matter in neutron stars from the solid crust through the liquid nuclear matter interior to the quark regime at higher densities. We focus in detail on the question of how quark matter appears in neutron…

高能天体物理现象 · 物理学 2018-08-06 Gordon Baym , Tetsuo Hatsuda , Toru Kojo , Philip D. Powell , Yifan Song , Tatsuyuki Takatsuka

Thermal QCD equations of state at high baryon density are sensitive to the phase structure and the resulting excitation modes. The leading contribution at low temperature can be either ~p_F^2 T^2 (pF: Fermi momentum, T: temperature) for…

核理论 · 物理学 2018-03-14 Toru Kojo

We use the holographic V-QCD models to analyse the physics of dense QCD and neutron stars. Accommodating lattice results for thermodynamics of QCD enables us to make generic predictions for the Equation of State (EoS) of the quark matter…

高能物理 - 唯象学 · 物理学 2019-03-27 Niko Jokela , Matti Jarvinen , Jere Remes

We study the phase diagram of (large-$N_c$) QCD using a simplistic holographic hard-wall model with a dynamical scalar field and a homogeneous Ansatz representing a smeared instanton/baryon density. The resulting phase diagram is…

高能物理 - 理论 · 物理学 2022-06-22 Lorenzo Bartolini , Sven Bjarke Gudnason , Josef Leutgeb , Anton Rebhan

Nucleon matters are studied based on QCD. We extract nucleon-nucleon interaction from lattice QCD simulations in a recently developed approach, and then derive the equations of state of the symmetric nuclear matter and the pure neutron…

高能物理 - 格点 · 物理学 2013-11-26 Takashi Inoue , for HAL QCD Collaboration

The recent detection of gravitational waves from merging neutron star events has opened a new window on the many unknown aspects of their internal dynamics. A key role in this context is played by the transition from baryon to quark matter…

高能物理 - 唯象学 · 物理学 2019-10-08 Abha Rajan , Tyler Gorda , Simonetta Liuti , Kent Yagi

The behavior of QCD at high baryon density and low temperature is crucial to understanding the properties of neutron stars and gravitational waves emitted during their mergers. In this paper we study small systems of baryons in periodic…

核理论 · 物理学 2018-09-05 Stefano Gandolfi , Joseph Carlson , Alessandro Roggero , Joel Lynn , Sanjay Reddy

At very large densities and/or temperatures a quark-hadron phase transition is expected to take place. Simulations of QCD on lattice at zero baryon density indicate that the transition occurs at $T_c \sim 150-170$ MeV. The calculations…

核理论 · 物理学 2007-05-23 S. C. Phatak , P. K. Sahu

We explore the possibility of formation of $\Delta$ baryons (1232 MeV) in neutron star matter in an effective chiral model within the relativistic mean-field framework. With variation in delta-meson couplings, consistent with the…

核理论 · 物理学 2019-01-28 Debashree Sen , T. K. Jha

The gravitational waves emitted from a binary neutron star merger, as predicted from general relativistic magneto-hydrodynamics calculations, are sensitive to the appearance of quark matter and the stiffness of the equation of state of QCD…

高能物理 - 唯象学 · 物理学 2019-07-16 Anton Motornenko , Jan Steinheimer , Volodymyr Vovchenko , Stefan Schramm , Horst Stoecker
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