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相关论文: Amorphous state in the mixed phase of quark-hadron…

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The phase transition from hadronic matter to quark matter at high density might be a strong first order phase transition in presence of a large surface tension between the two phases. While this implies a constant-pressure mixed phase for…

高能天体物理现象 · 物理学 2009-10-29 G. Pagliara , M. Hempel , J. Schaffner-Bielich

We study the quark-hadron mixed phase in proto-neutron stars with the finite-size effects. In the calculations of pasta structures appeared in the mixed phase, the Gibbs conditions require the pressure balance and chemical equilibrium…

高能天体物理现象 · 物理学 2015-05-20 Nobutoshi Yasutake , Toshiki Maruyama , Toshitaka Tatsumi

We consider the possible formation of the quark hadron mixed phase in protoneutron stars. We discuss two cases: the first one, corresponding to a vanishingly small value of the surface tension of quark matter, is the well known mixed phase…

太阳与恒星天体物理 · 物理学 2014-11-20 Giuseppe Pagliara , Matthias Hempel , Jurgen Schaffner-Bielich

A structured mixed phase consisting of quark and hadron phases is numerically studied with the Coulomb screening effect and the surface effect. We carefully introduced the Coulomb potential, so that a geometrical structure becomes…

高能物理 - 唯象学 · 物理学 2007-05-23 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 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

Quest for a new form of matter inside compact stars compels us to examine the thermodynamical properties of the phase transitions. We closely consider the first-order phase transitions and the phase equilibrium on the basis of the Gibbs…

核理论 · 物理学 2011-07-13 Toshitaka Tatsumi , Nobutoshi Yasutake , Toshiki Maruyama

We compare the Gibbs and Maxwell constructions for the hadron-quark phase transition in neutron and protoneutron stars, including interacting hyperons in the confined phase. We find that the hyperon populations are suppressed, and that…

太阳与恒星天体物理 · 物理学 2015-05-20 N. Yasutake , G. F. Burgio , H. -J. Schulze

We develop our previous study of the transition to deconfined quark phase in neutron stars, including the interaction in the quark equation of state to the leading order in the perturbative expansion within the confinement density-dependent…

太阳与恒星天体物理 · 物理学 2015-06-24 A. Li , W. Zuo , G. -X. Peng

We analyze the different possibilities for the hadron-quark phase transition occurring in beta-stable matter including hyperons in neutron stars. We use a Brueckner-Hartree-Fock approach including hyperons for the hadronic equation of state…

核理论 · 物理学 2008-11-26 Toshiki Maruyama , Satoshi Chiba , Hans-Josef Schulze , Toshitaka Tatsumi

We investigate protoneutron star matter using the state-of-the-art perturbative equation of state for cold and dense QCD in the presence of a fixed lepton fraction in which both electrons and neutrinos are included. Besides computing the…

高能物理 - 唯象学 · 物理学 2018-05-23 J. C. Jiménez , E. S. Fraga

In the first part of this paper, we investigate the possible existence of a structured hadron-quark mixed phase in the cores of neutron stars. This phase, referred to as the hadron-quark pasta phase, consists of spherical blob, rod, and…

核理论 · 物理学 2019-07-16 F. Weber , D. Farrell , W. M. Spinella , G. Malfatti , M. G. Orsaria , G. A. Contrera , I. Maloney

We construct an equation of state including the hadron-quark phase transition. The mixed phase is obtained by the Gibbs conditions for finite temperature. We adopt the equation of state based on the relativistic mean field theory for the…

天体物理学 · 物理学 2008-11-26 Ken'ichiro Nakazato , Kohsuke Sumiyoshi , Shoichi Yamada

We study the hadron-quark phase transition in the interior of protoneutron stars. For the hadronic sector, we use a microscopic equation of state involving nucleons and hyperons derived within the finite-temperature…

天体物理学 · 物理学 2008-11-26 O. E. Nicotra , M. Baldo , G. F. Burgio , H. -J. Schulze

We study the hadron-quark phase transition in the interior of hot protoneutron stars, combining the Brueckner-Hartree-Fock approach for hadronic matter with the MIT bag model or the Dyson-Schwinger model for quark matter. We examine the…

太阳与恒星天体物理 · 物理学 2015-06-15 H. Chen , G. F. Burgio , H. -J. Schulze , N. Yasutake

We investigate the qualitative properties of phase transitions in a general way, if not the single particle numbers of the system but only some particular charges like e.g. baryon number are conserved. In addition to globally conserved…

高能天体物理现象 · 物理学 2009-12-30 M. Hempel , G. Pagliara , J. Schaffner-Bielich

We study the structure of protoneutron stars within the finite temperature Brueckner-Bethe-Goldstone many-body theory. If nucleons, hyperons, and leptons are present in the stellar core, we find that neutrino trapping stiffens considerably…

天体物理学 · 物理学 2014-10-13 G. F. Burgio , M. Baldo , O. E. Nicotra , H. -J. Schulze

We investigate the property of the hadron-quark mixed phase using the Brueckner-Hartree-Fock model for hadron (hyperon) phase and the MIT bag model for quark phase. To satisfy the Gibbs conditions, charge density as well as baryon number…

核理论 · 物理学 2009-01-30 Toshiki Maruyama , Satoshi Chiba , Hans-Josef Schulze , Toshitaka Tatsumi

We explore the possibility of a structured hadron-quark mixed phase forming in the interior of neutron stars. The quark-meson coupling (QMC) model, which explicitly incorporates the internal quark structure of the nucleon, is employed to…

核理论 · 物理学 2021-03-03 Min Ju , Xuhao Wu , Fan Ji , Jinniu Hu , Hong Shen

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
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