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相关论文: Zero-temperature thermodynamics of dense asymmetri…

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We extend the recently developed quantum van der Waals quarkyonic matter to non-zero isospin asymmetries by utilizing the two-component van der Waals equation with a generalized excluded volume prescription. The isospin dependence of van…

核理论 · 物理学 2024-11-20 Tripp Moss , Roman Poberezhniuk , Volodymyr Vovchenko

We study the speed of sound in strong-interaction matter at zero temperature and in density regimes which are expected to be governed by the presence of a color-superconducting gap. At (very) high densities, our analysis indicates that the…

核理论 · 物理学 2024-05-07 Jens Braun , Andreas Geißel , Benedikt Schallmo

We explore the thermal properties of hot and dense matter using a model that reproduces the empirical properties of isospin symmetric and asymmetric bulk nuclear matter, optical model fits to nucleon-nucleus scattering data, heavy-ion flow…

太阳与恒星天体物理 · 物理学 2015-08-26 Constantinos Constantinou , Brian Muccioli , Madappa Prakash , James M. Lattimer

We study the equation of state of symmetric nuclear matter at zero temperature over a wide range of densities using two complementary theoretical approaches. At low densities up to twice nuclear saturation density, we compute the energy per…

核理论 · 物理学 2020-11-24 M. Leonhardt , M. Pospiech , B. Schallmo , J. Braun , C. Drischler , K. Hebeler , A. Schwenk

The phase state of dense matter in the intermediate density range ($\sim$1-10 times the nuclear saturation density) is both intriguing and unclear and could have important observable effects in the present gravitational wave era of neutron…

核理论 · 物理学 2021-04-09 Chengjun Xia , Zhenyu Zhu , Xia Zhou , Ang Li

This study uses classical molecular dynamics to simulate infinite nuclear matter and study the effect of isospin asymmetry on bulk properties such as energy per nucleon, pressure, saturation density, compressibility and symmetry energy. The…

核理论 · 物理学 2014-02-26 J. A. López , E. Ramírez-Homs , R. González , R. Ravelo

We determine the QCD equation of state at nonzero temperature in the presence of an isospin asymmetry between the light quark chemical potentials on the lattice. Our simulations employ $N_f=2+1$ flavors of dynamical staggered quarks at…

高能物理 - 格点 · 物理学 2023-08-01 Bastian B. Brandt , Francesca Cuteri , Gergely Endrodi

At high density, matter is expected to undergo a phase transition to deconfined quark matter. Although the density at which it happens and the strength of the transition are still largely unknown, we can model it to be in agreement with…

核理论 · 物理学 2023-11-21 Alexander Clevinger , Veronica Dexheimer , Jeffrey Peterson

Deconfined quark matter at asymptotically high densities is weakly coupled, due to the asymptotic freedom of Quantum Chromodynamics. In this weak-coupling regime, bulk thermodynamic properties of quark matter, assuming a trivial ground…

高能物理 - 唯象学 · 物理学 2024-07-25 Andreas Geißel , Tyler Gorda , Jens Braun

We consider Quarkyonic Matter to naturally explain the observed properties of neutron stars. We argue that such matter might exist at densities close to that of nuclear matter and at the onset, the pressure and the sound velocity in…

核理论 · 物理学 2019-04-03 Larry McLerran , Sanjay Reddy

With the effective chiral model, the finite temperature properties of nuclear matter have been studied at different temperatures. For symmetric nuclear matter, I particularly focused on the possibility of liquid-gas phase transition at low…

核理论 · 物理学 2020-12-22 Debashree Sen

The symmetry energy characterizes the isospin dependent part of the equation of state of isospin asymmetric strong interaction matter and it plays a critical role in many issues of nuclear physics and astrophysics. In this talk, we briefly…

核理论 · 物理学 2017-08-16 Lie-Wen Chen

Neutron stars explore matter at the highest densities in the universe such that their inner cores might undergo a phase transition from hadronic to exotic phases, e.g., quark matter. Such a transition could be associated with non-trivial…

核理论 · 物理学 2023-03-22 Rahul Somasundaram , Ingo Tews , Jérôme Margueron

The free energy and the equation of state of isospin-asymmetric nuclear matter are calculated at finite temperature up to three loop order in the framework of in-medium chiral perturbation theory, systematically incorporating one- and…

核理论 · 物理学 2012-03-14 Salvatore Fiorilla , Norbert Kaiser , Wolfram Weise

We investigate the phase structure of strongly interacting matter at non-vanishing isospin before the onset of pion condensation in the framework of the unquenched Polyakov-Quark-Meson model with 2+1 quark flavors. We show results for the…

高能物理 - 唯象学 · 物理学 2014-01-15 Rainer Stiele , Eduardo S. Fraga , Juergen Schaffner-Bielich

We study a neutron star with a quark matter core under extremely strong magnetic fields. We investigate the possibility of an Urca process as a mechanism for the cooling of such a star. We found that apart from very particular cases, the…

太阳与恒星天体物理 · 物理学 2009-07-30 Chris Kouvaris

From the observation of both heavy neutron stars and light ones with small radii, one anticipates a steep rise in the speed of sound of nuclear matter as a function of baryon density up to values close to the causal limit. A question…

We study the dense nuclear matter within the holographic Sakai-Sugimoto model. The nuclear matter is described via instantons in bulk, whose size has the new temperature dependency. Then, properties of nuclear matter have been studied for…

高能物理 - 理论 · 物理学 2021-10-04 F. Kazemian , B. Pourhassan

Accurate knowledge of the thermodynamic properties of zero-temperature, high-density quark matter plays an integral role in attempts to constrain the behavior of the dense QCD matter found inside neutron-star cores, irrespective of the…

高能物理 - 唯象学 · 物理学 2022-06-17 Tyler Gorda , Aleksi Kurkela , Risto Paatelainen , Saga Säppi , Aleksi Vuorinen

The detection of gravitational waves from a neutron star merger has opened up the possibility of detecting the presence or creation of deconfined quark matter using the gravitational wave signal. To investigate this possibility, we…

高能天体物理现象 · 物理学 2019-10-02 Paul M. Chesler , Niko Jokela , Abraham Loeb , Aleksi Vuorinen
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