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相关论文: Charge Screening at First Order Phase Transitions …

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We investigate the properties of nuclear matter at the first-order phase transitions (FOPT) such as liquid-gas phase transition, kaon condensation, and hadron-quark phase transition. As a general feature of the FOPT of matter consisting of…

核理论 · 物理学 2009-05-12 Toshiki Maruyama , Toshitaka Tatsumi , Satoshi Chiba

We investigate the chemical potential and baryon number density of the hadron-quark phase transition in neutron star matter. The hadron matter is described with relativistic mean field theory, and the quark matter is described with the…

核理论 · 物理学 2019-09-04 Zhan Bai , Yu-xin Liu

In this paper we investigate quark deconfinement in neutrons stars and their mergers, focusing on the effects of higher orders for the phase transition between hadronic and quark matter. The different descriptions we use to describe matter…

Starting from the relativistic Brueckner-Hartree-Fock theory for nuclear matter and the Dyson-Schwinger equation approach for quark matter, the possible hadron-quark phase transition in the interior of a neutron star is explored. The…

核理论 · 物理学 2023-05-16 Pianpian Qin , Zhan Bai , Sibo Wang , Chencan Wang , Si-xue Qin

For the past 20 years it had been thought that the coexistence phase of the confined hadronic and quark matter phases, assumed to be a first order transition, was strictly excluded from neutron stars. This, however, was due to a seemingly…

天体物理学 · 物理学 2007-05-23 Fridolin Weber , Norman K. Glendenning , Shouyong Pei

We investigate the possibility and impacts of a first-order phase transition from hadronic matter to quark matter in neutron stars (NSs) using two specific models: the parity doublet model (PDM) for the hadronic phase and the…

核理论 · 物理学 2024-07-22 Bikai Gao , Wen-Li Yuan , Masayasu Harada , Yong-Liang Ma

We investigate the phase transition from hadron to quark matter in the general case without the assumption of chemical equilibrium. The effects of net strangeness on charge and isospin fractions, chemical potentials, and temperature are…

核理论 · 物理学 2020-11-04 K. Aryal , C. Constantinou , R. L. S. Farias , V. Dexheimer

We study the hadron-quark mixed phase, which may occur in the interior of neutron stars. The relativistic mean-field model is employed to describe the hadronic phase, while the Nambu--Jona-Lasinio model is used for the quark phase. We…

核理论 · 物理学 2019-06-20 X. H. Wu , H. Shen

The mixed phase of quarks and hadrons which might exist in the dense matter encountered in the varying conditions of temperature and trapped neutrino fraction in proto-neutron stars is studied. The extent that the mixed phase depends upon…

核理论 · 物理学 2009-11-06 A. Steiner , M. Prakash , J. M. Lattimer

In this talk I discuss three main topics concerning the theoretical description and observable signatures of possible phase transitions in nuclear collisions. The first one is related to the multifragmentation of thermalized sources and its…

核理论 · 物理学 2010-12-13 I. N. Mishustin

In the current work an equation of state model with a first-order phase transition for astrophysical applications is presented. The model is based on a two-phase approach for quark-hadron phase transitions, which leads by construction to a…

核理论 · 物理学 2021-01-26 Niels-Uwe F. Bastian

Recent equations of state for dense nuclear matter are discussed with possible phase transitions arising in neutron stars such as pion, kaon and hyperon kondensation, superfluidity and quark matter. Specifically, we treat the nuclear to…

核理论 · 物理学 2009-10-31 H. Heiselberg , M. Hjorth-Jensen

We consider how the occurrence of first-order phase transitions in non-constant pressure differs from those at constant pressure. The former has shown the non-linear phase structure of mixed matter, which implies a particle number…

高能物理 - 唯象学 · 物理学 2015-06-18 Xiao-Ping Zheng , Xia Zhou , Shu-Hua Yang

A recent solution of the hyperon puzzle by a first order phase transition to color superconducting quark matter is revisited in order to replace the Maxwell construction by an interpolation method which describes a mixed phase. To do this,…

核理论 · 物理学 2020-10-16 M. Shahrbaf , D. Blaschke , S. Khanmohamadi

The equation of state and the properties of neutron stars are studied for a phase transition to a charged kaon condensate. We study the mixed phase by using Gibbs condition with comparison to the hitherto applied Maxwell construction.…

核理论 · 物理学 2007-05-23 Juergen Schaffner-Bielich , Norman K. Glendenning

Based on an extended NJL model that treats baryons as clusters of quarks, we investigate the properties and microscopic structures of mixed phases for various types of first-order phase transitions in a unified manner, where the model…

核理论 · 物理学 2024-09-24 Cheng-Jun Xia , Toshiki Maruyama , Nobutoshi Yasutake , Toshitaka Tatsumi

In this work, we consider the properties of compact stars in which quark matter has low- and high-density phases that are separated by a first-order phase transition. Thus, unlike the commonly considered case of a single phase transition…

高能天体物理现象 · 物理学 2023-03-27 Jia Jie Li , Armen Sedrakian , Mark Alford

We show that the hadron-quark mixed phase is restricted to narrow range of baryon chemical potential by the charge screening effect. Accordingly the mixed phase expected in hadron-quark hybrid stars should be narrow. Although the screening…

高能物理 - 唯象学 · 物理学 2009-11-11 Tomoki Endo , Toshiki Maruyama , Satoshi Chiba , Toshitaka Tatsumi

The transition from hadronic matter to quark matter in the core of neutron stars is likely to be associated with the appearance of a mixed phase, leading to a smooth variation of the star density profile. We discuss the results of a…

天体物理学 · 物理学 2009-11-10 Omar Benhar , Roberto Rubino

The influence of the nuclear symmetry energy on the formation of a mixed quark-nucleon phase in neutron star cores is studied. We use simple parametrizations of the nuclear matter equation of state, and the bag model for the quark phase.…

天体物理学 · 物理学 2009-10-31 M. Kutschera , J. Niemiec