Liquid-gas phase transitions in a multicomponent nuclear system with Coulomb and surface effects

Lee, S. J.; Mekjian, A. Z.

doi:10.1103/physrevc.63.044605

Cited by 66 publications

(109 citation statements)

References 20 publications

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“…(8). For these pairs of states we find all the solutions (n 1 , n 2 , λ) consistent with the requirement of Eq.…”

Section: B Qhd Modelmentioning

confidence: 73%

“…As a first approximation we neglected the electromagnetic interaction, which could have significant influence on the thermodynamical fluctuations leading to a change of phase, see for example [8].…”

Section: Discussionmentioning

confidence: 99%

“…It is worthwhile to mention that the inclusion of other effects, such as the Coulomb and surface tension forces, could change dramatically this description [8].…”

Section: Introductionmentioning

confidence: 99%

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Nuclear superfluidity in isospin asymmetric matter within the Skyrme model

Aguirre

2012

Phys. Rev. C

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Thermal and isospin composition effects over the heat capacity of infinite nuclear matter are studied within the binodal coexistence region of the nuclear phase diagram. Assuming the independent conservation of both proton and neutron densities, a second order phase transition is expected, leading to a discontinuous behavior of the heat capacity. This discontinuity is analyzed for the full range of the thermodynamical variables coherent with the equilibrium coexistence of phases. Two different effective models of the nuclear interaction are examined in the mean field approximation, the non-relativistic Skyrme force and the covariant QHD formulation. We found qualitative agreement between both descriptions. The discontinuity in the specific heat per particle is finite and decreases with both the density of particles and the isospin asymmetry.As a byproduct the latent heat for isospin-symmetric matter is considered. * Electronic address: aguirre@fisica.unlp.edu.ar

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“…(8). For these pairs of states we find all the solutions (n 1 , n 2 , λ) consistent with the requirement of Eq.…”

Section: B Qhd Modelmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

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Nuclear superfluidity in isospin asymmetric matter within the Skyrme model

Aguirre

2012

Phys. Rev. C

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“…This is notably the case of frustrated Ising ferromagnets, as well as of finite atomic nuclei. In such cases the Coulomb repulsion is known to reduce the limiting temperature [7,8,9,17,18]. This reduction is also an usual expectation in the astrophysical context [2,19,20].…”

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confidence: 92%

Ising Analogue to Compact-Star Matter

et al. 2007

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By constructing an Ising analogue of compact-star matter at sub-saturation density we explored the effect of Coulomb frustration on the nuclear liquid-gas phase transition. Our conclusions is twofold. First, the range of temperatures where inhomogeneous phases form expands with increasing Coulomb-field strength. Second, within the approximation of uniform electron distribution, the limiting point upon which the phase-coexistence region ends does not exhibit any critical behaviour. Possible astrophysics consequences and thermodynamical connections are discussed.

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“…In most of the investigations, properties of the liquidgas mixed phase were obtained from a bulk calculation, in which the phase coexistence is governed by the Gibbs conditions and the finite-size effects like surface and Coulomb contributions are neglected. It was found that the inclusion of surface and Coulomb effects has a significant impact on the critical temperature and the liquid-gas coexistence region based on various approximations [6,[22][23][24][25]. It is interesting and important to investigate the finite-size effects on the liquid-gas phase transition of stellar matter in a consistent manner.…”

Section: Introductionmentioning

confidence: 99%

Effects of finite size and symmetry energy on the phase transition of stellar matter at subnuclear densities

Bao

Shen

2016

Phys. Rev. C

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We study the liquid-gas phase transition of stellar matter with the inclusion of the finite-size effect from surface and Coulomb energies. The equilibrium conditions for two coexisting phases are determined by minimizing the total free energy including the surface and Coulomb contributions, which are different from the Gibbs conditions used in the bulk calculations. The finite-size effect can significantly reduce the region of the liquid-gas mixed phase. The influence of the symmetry energy on the liquid-gas phase transition is investigated with the inclusion of finite-size effects. It is found that the slope of the symmetry energy plays an important role in determining the boundary and properties of the mixed phase.

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Liquid-gas phase transitions in a multicomponent nuclear system with Coulomb and surface effects

Cited by 66 publications

References 20 publications

Nuclear superfluidity in isospin asymmetric matter within the Skyrme model

Nuclear superfluidity in isospin asymmetric matter within the Skyrme model

Ising Analogue to Compact-Star Matter

Effects of finite size and symmetry energy on the phase transition of stellar matter at subnuclear densities

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