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相关论文: Liquid-gas phase transition in nuclei in the relat…

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In a finite temperature Thomas-Fermi framework, we calculate density distributions of hot nuclei enclosed in a freeze-out volume of few times the normal nuclear volume and then construct the caloric curve, with and without inclusion of…

核理论 · 物理学 2009-10-30 J. N. De , S. K. Samaddar , S. Shlomo

We construct the equation of state (EOS) of finite nuclei including surface and Coulomb effects in a Thomas-Fermi framework using a finite range, momentum and density dependent two-body interaction. We identify critical temperatures for…

核理论 · 物理学 2008-11-26 J. N. De , B. K. Agrawal , S. K. Samaddar

In a finite temperature Thomas-Fermi theory with realistic nuclear interactions, we construct caloric curves for finite nuclei enclosed in a sphere of about $4 - 8$ times the normal nuclear volume. The specific heat capacity $C_v$ shows a…

核理论 · 物理学 2009-09-25 J. N. De , S. Das Gupta , S. Shlomo , S. K. Samaddar

A canonical ensemble model is used to describe a caloric curve of nuclear liquid-gas phase transition. Allowing a discontinuity in the freeze out density from one spinodal density to another for a given initial temperature, the nuclear…

核理论 · 物理学 2008-11-26 S. J. Lee , A. Z. Mekjian

In a finite temperature Thomas-Fermi theory, we construct caloric curves for finite nuclei enclosed in a freeze-out volume few times the normal nuclear volume, with and without inclusion of flow. Without flow, the caloric curve indicates a…

核理论 · 物理学 2009-01-23 S. K. Samaddar , J. N. De , S. Shlomo

The nuclear liquid-gas phase transition of the system in ideal thermal equilibrium is studied with antisymmetrized molecular dynamics. The time evolution of a many-nucleon system confined in a container is solved for a long time to get a…

核理论 · 物理学 2009-11-10 Takuya Furuta , Akira Ono

The liquid-gas phase transition in finite nuclei is studied in a heated liquid-drop model where the drop is assumed to be in thermodynamic equilibrium with the vapour emanated from it. Changing pressure along the liquid-gas coexistence line…

核理论 · 物理学 2007-05-23 Tapas Sil , S. K. Samaddar , J. N. De , S. Shlomo

A self-consistent description for hot $\Lambda$ hypernuclei in hypothetical big boxes is developed within the relativistic Thomas-Fermi approximation in order to investigate directly the liquid-gas phase coexistence in strangeness finite…

核理论 · 物理学 2016-11-30 Jinniu Hu , Zhaowen Zhang , Shishao Bao , Hong Shen

The liquid-gas phase transition in finite nuclei is studied in a heated liquid-drop model where the nuclear drop is assumed to be in thermodynamic equilibrium with its own evaporated nucleonic vapor conserving the total baryon number and…

核理论 · 物理学 2009-11-11 J. N. De , S. K. Samaddar , S. Shlomo , J. B. Natowitz

The time evolution of excited nuclei, which are in equilibrium with the surrounding vapour, is investigated. It is shown that the finite nuclear systems undergo a first oder phase transition. The caloric curve is presented for excited…

核理论 · 物理学 2009-10-30 J. Schnack , H. Feldmeier

We study the nuclear liquid-gas phase transition on the basis of a two-component lattice gas model. A Metropolis type of sampling method is used to generate microscopic states in the canonical ensemble. The effective equation of state and…

核理论 · 物理学 2009-10-31 J. Borg , I. N. Mishustin , J. P. Bondorf

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

We study the nature of phase transitions between gaseous and condensed states in the self-gravitating Fermi gas at nonzero temperature in general relativity. The condensed states can represent compact objects such as white dwarfs, neutron…

广义相对论与量子宇宙学 · 物理学 2020-12-30 Giuseppe Alberti , Pierre-Henri Chavanis

The liquid-gas phase transition in hot asymmetric nuclear matter is studied within density-dependent relativistic mean-field models where the density dependence is introduced according to the Brown-Rho scaling and constrained by available…

核理论 · 物理学 2013-04-04 Guang-Hua Zhang , Wei-Zhou Jiang

We construct the equation of state (EOS) in a wide density range for neutron stars using the relativistic mean field theory. The properties of neutron star matter with both uniform and non-uniform distributions are studied consistently. The…

核理论 · 物理学 2009-11-07 H. Shen

A new table of the nuclear equation of state (EOS) based on realistic nuclear potentials is constructed for core-collapse supernova numerical simulations. Adopting the EOS of uniform nuclear matter constructed by two of the present authors…

核理论 · 物理学 2017-03-23 H. Togashi , K. Nakazato , Y. Takehara , S. Yamamuro , H. Suzuki , M. Takano

We construct the equation of state (EOS) of nuclear matter at finite temperature and density with various proton fractions within the relativistic mean field (RMF) theory for the use in the supernova simulations. The Thomas-Fermi…

核理论 · 物理学 2009-10-31 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi

The machine-learning techniques have shown their capability for studying phase transitions in condensed matter physics. Here, we employ the machine-learning techniques to study the nuclear liquid-gas phase transition. We adopt an…

核理论 · 物理学 2020-11-17 Rui Wang , Yu-Gang Ma , R. Wada , Lie-Wen Chen , Wan-Bing He , Huan-Ling Liu , Kai-Jia Sun

Finite systems such as atomic nuclei present at phase transition specific features different from those observed at the thermodynamic limit. Several characteristic signals were found in samples of events resulting from heavy ion collisions…

We construct the equation of state (EOS) of nuclear matter using the relativistic mean field (RMF) theory in the wide density, temperature range with various proton fractions for the use of supernova simulation and the neutron star…

核理论 · 物理学 2009-10-31 H. Shen , H. Toki , K. Oyamatsu , K. Sumiyoshi
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