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We present an updated and improved equation of state (which we call the NDL EoS) for use in neutron-star structure and supernova simulations. This EoS is based upon a framework originally developed by Bowers & Wilson, but there are numerous…

高能天体物理现象 · 物理学 2013-03-04 Matthew Meixner , J. Pocahontas Olson , Grant Mathews , N. Q. Lan , H. E. Dalhed

The equation of state (EoS) of strongly interacting matter at finite temperature and chemical potentials (baryon, charge, and strangeness) is a crucial input for hydrodynamic simulations of relativistic heavy-ion collisions. We construct a…

核理论 · 物理学 2026-04-27 Fu-Peng Li , Long-Gang Pang , Guang-You Qin

We construct a four-dimensional version of the equation of state (EoS) model NEOS, NEOS-4D, as a function of the temperature and chemical potentials of baryon, electric charge, and strangeness for the hot and dense QCD matter created in…

核理论 · 物理学 2024-10-14 Akihiko Monnai , Grégoire Pihan , Björn Schenke , Chun Shen

Equation of state (EOS) describes the thermodynamic properties of substances. It has important applications in many fields such as power mechanics, geophysics, astrophysics, and detonation physics. Currently, most EOSs have been constructed…

统计力学 · 物理学 2021-07-15 Ti-Wei Xue , Zeng-Yuan Guo

Bayesian methods are used to constrain the density dependence of the QCD Equation of State (EoS) for dense nuclear matter using the data of mean transverse kinetic energy and elliptic flow of protons from heavy ion collisions (HIC), in the…

高能物理 - 唯象学 · 物理学 2023-11-20 Manjunath Omana Kuttan , Jan Steinheimer , Kai Zhou , Horst Stoecker

The Noble-Abel (NA) equation of state (EOS) is widely used in interior ballistics of guns as well as rocket propulsion computations. Its simplicity and accuracy are key points for intensive computations with hyperbolic two-phase flow models…

偏微分方程分析 · 数学 2024-06-19 Richard Saurel , Loann Neron

We study two recently proposed equations of state (EOS) which are obtained from high temperature QCD, and show how they can be adapted to use them for making predictions for relativistic heavy ion collisions. The method involves extracting…

核理论 · 物理学 2014-11-18 Vinod Chandra , Ravindra Kumar , V. Ravishankar

Based on the method proposed in [ H. S. Zong, W. M. Sun, Phys. Rev. \textbf{D 78}, 054001 (2008)], we calculate the equation of state (EOS) of QCD at zero temperature and finite quark chemical potential under the hard-dense-loop (HDL)…

高能物理 - 唯象学 · 物理学 2014-11-21 Yu Jiang , Hua Li , Shi-song Huang , Wei-min Sun , Hong-shi Zong

A thermodynamic equation of state (EOS) for thermoelectrons is derived which is appropriate for investigating the thermodynamic variations along isobaric paths. By using this EOS and the Wu-Jing (W-J) model, an extended Hugoniot EOS model…

其他凝聚态物理 · 物理学 2012-03-06 H. Y. Geng , Q. Wu , H. Tan , L. Cai , F. Jing

In order to verify and validate the newly developed thermoelectron equation of state (EOS) model that is based on the Wu-Jing (W-J) EOS, calculations of shock compression behavior have been made on five different porous metals-iron, copper,…

材料科学 · 物理学 2012-03-06 H. Y. Geng , Q. Wu , H. Tan , L. Cai , F. Jing

Transitions between different states of matter and their thermodynamic properties are described by the Equation of State (EoS). A universal representation of the EoS of Quantum Chromodynamics (QCD) for the wide range of phase diagram has…

高能物理 - 唯象学 · 物理学 2023-08-22 Maria Stefaniak , Klaus Werner , Johannes Jahan , Hanna Zbroszczyk

Equations of state (EOS) calculated from a computationally efficient atom-in-jellium treatment of the electronic structure have recently been shown to be consistent with more rigorous path integral Monte Carlo (PIMC) and quantum molecular…

The equation of state (EOS) of materials at warm dense conditions poses significant challenges to both theory and experiment. We report a combined computational, modeling, and experimental investigation leveraging new theoretical and…

The equation of state (EOS) is of utmost importance for the description of the hydrodynamic phase of strongly interacting matter in relativistic heavy-ion collisions. Lattice QCD can provide useful information on the EOS, mainly for small…

高能物理 - 唯象学 · 物理学 2008-03-12 R. Schulze , M. Bluhm , B. Kampfer

This report describes a new equation of state (EOS) for helium. The PANDA code was used to construct separate EOS tables for the solid and fluid phases. The solid and fluid EOS were then assembled into a multiphase EOS table using the PANDA…

化学物理 · 物理学 2013-06-28 Gerald I. Kerley

Relativistic temperature of gas raises the issue of the equation of state (EoS) in relativistic hydrodynamics. We study the EoS for numerical relativistic hydrodynamics, and propose a new EoS that is simple and yet approximates very closely…

天体物理学 · 物理学 2009-11-11 Dongsu Ryu , Indranil Chattopadhyay , Eunwoo Choi

We have constructed a nuclear equation of state (EOS) that includes a full nuclear ensemble for use in core-collapse supernova simulations. It is based on the EOS for uniform nuclear matter that two of the authors derived recently, applying…

高能天体物理现象 · 物理学 2017-08-01 S. Furusawa , H. Togashi , H. Nagakura , K. Sumiyoshi , S. Yamada , H. Suzuki , M. Takano

We present a new equation of state (EOS) for dense hydrogen/helium mixtures which covers a range of densities from $10^{-8}$ to $10^6$ g.cm$^{-3}$, pressures from $10^{-9}$ to $10^{13}$ GPa and temperatures from $10^{2}$ to $10^{8}$ K. The…

太阳与恒星天体物理 · 物理学 2019-02-20 G. Chabrier , S. Mazevet , F. Soubiran

The equation of state (EOS) for hot asymmetric nuclear matter which is constructed with the variational method starting from the Argonne v18 and Urbana IX nuclear forces is applied to spherically symmetric core-collapse supernovae (SNe). We…

核理论 · 物理学 2014-03-05 H. Togashi , M. Takano , K. Sumiyoshi , K. Nakazato

We construct the equation of state (EOS) of dense matter covering a wide range of temperature, proton fraction, and density for the use of core-collapse supernova simulations. The study is based on the relativistic mean-field (RMF) theory,…

高能天体物理现象 · 物理学 2012-03-26 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi
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