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Related papers: Pasta structures in compact stars

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Nonuniform structure of low-density nuclear matter, known as nuclear pasta, is expected to appear not only in the inner crust of neutron stars but also in core-collapse supernova explosions and neutron-star mergers. We perform fully…

Nuclear Theory · Physics 2021-05-19 Fan Ji , Jinniu Hu , Hong Shen

Using the density functional theory (DFT) with the relativistic mean field (RMF) model, we study the non-uniform state of nuclear matter, ``nuclear pasta''. We self-consistently include the Coulomb interaction together with other…

The properties of dense hadronic and quark matter and its relation to compact stars are discussed. In a bottom-up approach one starts with nuclear and hypernuclear physics at low density and extrapolates hadronic matter to large densities.…

Astrophysics · Physics 2009-09-29 J. Schaffner-Bielich

The interior of a neutron star is expected to exhibit different states of matter. In particular, complex non-spherical configurations known as `pasta' phases may exist at the highest densities in the inner crust, potentially having an…

Nuclear Theory · Physics 2021-10-28 H. Dinh Thi , T. Carreau , A. F. Fantina , F. Gulminelli

We examine the model dependence of the phase diagram of inhomogeneous nulcear matter in supernova cores using the quantum molecular dynamics (QMD). Inhomogeneous matter includes crystallized matter with nonspherical nuclei - "pasta" phases…

One of the most promising possibilities may be the appearance of quark matter in astrophysical phenomena in the light of recent progress in observations. The mechanism of deconfinement is not well understood, but the thermodynamical aspects…

High Energy Astrophysical Phenomena · Physics 2013-09-10 Nobutoshi Yasutake , Tsuneo Noda , Hajime Sotani , Toshiki Maruyama , Toshitaka Tatsumi

In this work, we focus on different length scales within the dynamics of nucleons in conditions according to the neutron star crust, with a semiclassical molecular dynamics model, studying isospin symmetric matter at subsaturation…

Nuclear Theory · Physics 2014-12-22 Pablo N. Alcain , Pedro A. Giménez Molinelli , Claudio O. Dorso

We perform a three-dimensional, finite temperature Skyrme-Hartree-Fock study of inhomogeneous nuclear matter to determine the critical density and temperature for the phase transition between the pasta phase and homogeneous matter and its…

Nuclear Theory · Physics 2014-12-04 Helena Pais , William G. Newton , Jirina R. Stone

We explore the properties of nuclear pasta appearing in supernova matter, i.e., matter at finite temperature with a fixed proton fraction. The pasta phases with a series of geometric shapes are studied using the compressible liquid-drop…

High Energy Astrophysical Phenomena · Physics 2020-08-05 Fan Ji , Jinniu Hu , Shishao Bao , Hong Shen

We review the differences in first order phase transition of single and multi-component systems, and then discuss the crystalline structure expected to exist in the mixed confined deconfined phase of hadronic matter. The particular context…

Astrophysics · Physics 2009-09-25 Norman K. Glendenning , S. Pei

Nuclear ``pasta'', nonspherical nuclei in dense matter, is predicted to occur in collapsing supernova cores. We show how pasta phases affect the neutrino transport cross section via weak neutral current using several nuclear models. This is…

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…

Astrophysics · Physics 2009-11-10 Omar Benhar , Roberto Rubino

Dense matter as it can be found in core-collapse supernovae and neutron stars is expected to exhibit different phase transitions which impact the matter composition and the equation of state, with important consequences on the dynamics of…

Nuclear Theory · Physics 2013-02-18 F. Gulminelli , Ad-R. Raduta , J. Margueron , P. Papakonstantinou , M. Oertel

We present a new method to interpolate between two matter phases that allows for a description of mixed phases and can be used, e.g., for mimicking transitions between pasta structures occuring in the crust as well as in the inner core of…

Nuclear Theory · Physics 2020-05-06 David Blaschke , David Alvarez-Castillo

We consider configurations of $N$ charged particles on the interval with nearest neighbour Coulomb interaction and constant external force. For different values of external force we find 4 different phases of the asymptotic particle density…

Mathematical Physics · Physics 2016-11-03 V. A. Malyshev

Coulomb plasmas crystallize in a number of physical systems, such as dusty plasmas, neutron star crusts, and white dwarf cores. The crystal structure of the one component and binary plasma has received significant attention in the…

Soft Condensed Matter · Physics 2020-02-12 M. E. Caplan

This investigation explores the phononic thermal conductivity of nuclear star matter as it undergoes the "topological" transition to the "pasta" regime, and further down to the solid-liquid phase transition. The study was carried out using…

Nuclear Theory · Physics 2020-05-20 Claudio Dorso , Jonathan Dunn , Alejandro Strachan , Guillermo Frank

We study the role of Coulomb and surface effects on the phase transition from dense nuclear matter to a mixed phase of nuclear and kaon-condensed matter. We calculate corrections to the bulk calculation of the equation of state (EOS) and…

Nuclear Theory · Physics 2009-11-06 Travis Norsen , Sanjay Reddy

The effects of including light clusters in nuclear matter at low densities are investigated within four different parametrizations of relativistic models at finite temperature. Both homogeneous and inhomogeneous matter (pasta phase) are…

Nuclear Theory · Physics 2015-06-04 S. S. Avancini , C. C. Barros , L. Brito , S. Chiacchiera , D. P. Menezes , C. Providência

Possibility of structured mixed phase at first order phase transitions is examined by taking into account of charge screening and surface effects. Hadron-quark phase transition in dense neutron star interiors is considered as a concrete…

Nuclear Theory · Physics 2015-06-26 T. Tatsumi , M. Yasuhira , D. N. Voskresensky