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Nuclear matter is considered to be inhomogeneous at subnuclear densities that are realized in supernova cores and neutron star crusts, and the structures of nuclear matter change from spheres to cylinders, slabs, cylindrical holes and…

核理论 · 物理学 2009-10-25 Ken'ichiro Nakazato , Kazuhiro Oyamatsu , Shoichi Yamada

In cores of supernovae and crusts of neutron stars, nuclei can adopt interesting shapes, such as rods or slabs, etc., which are referred to as nuclear "pasta." Recently, we have been studying the pasta phases focusing on their dynamical…

核理论 · 物理学 2007-05-23 Gentaro Watanabe , Hidetaka Sonoda

In neutron star crust, non-uniform structure of nuclear matter is expected, which is called the "pasta" structure. From the recent studies of giant flares in magnetars, these structures might be related to some observables and physical…

核理论 · 物理学 2014-01-31 Minoru Okamoto , Toshiki Maruyama , Kazuhiro Yabana , Toshitaka Tatsumi

More than twenty years ago, it was predicted that nuclei can adopt interesting shapes, such as rods or slabs, etc., in the cores of supernovae and the crusts of neutron stars. These non-spherical nuclei are referred to as nuclear "pasta".…

软凝聚态物质 · 物理学 2007-05-23 Gentaro Watanabe , Hidetaka Sonoda

Nuclear matter under the conditions of a supernova explosion unfolds into a rich variety of spatially structured phases, called nuclear pasta. We investigate the role of periodic network-like structures with negatively curved interfaces in…

In the framework of the relativistic mean field model with Thomas-Fermi approximation, we study the structures of low density nuclear matter in a three-dimensional geometry with reflection symmetry. The numerical accuracy and efficiency are…

In supernova cores and neutron star crusts, nuclei with exotic shapes such as rod-like and slab-like nuclei are expected to exist. These nuclei are collectively called nuclear "pasta". For the past decades, existence of the pasta phases in…

核理论 · 物理学 2012-04-16 Gentaro Watanabe , Toshiki Maruyama

In cores of supernovae and crusts of neutron stars, nuclei can adopt interesting shapes, such as rods or slabs, etc., which are referred to as nuclear "pasta." In recent years, we have studied the pasta phases focusing on their dynamical…

核理论 · 物理学 2008-11-26 Gentaro Watanabe

The effects of the existence of exotic nuclear shapes at the bottom of the neutron star inner crust - nuclear `pasta' - on observational phenomena are estimated by comparing the limiting cases that those phases have a vanishing shear…

太阳与恒星天体物理 · 物理学 2015-05-28 M. Gearheart , W. G. Newton , J. Hooker , Bao-An Li

Background: Nuclear pasta, emerging due to the competition between the long-range Coulomb force and the short-range strong force, is believed to be present in astrophysical scenarios, such as neutron stars and core-collapse supernovae. Its…

核理论 · 物理学 2019-11-06 B. Schuetrumpf , G. Martínez-Pinedo , Md Afibuzzaman , H. M. Aktulga

We investigate the impact of nuclear pasta on crustal structure and torsional oscillations using a Bayesian ensemble of unified neutron-star equations of state based on relativistic mean-field models constrained by nuclear experiments,…

核理论 · 物理学 2026-02-24 Vishal Parmar , Ignazio Bombaci

It is well known that strongly correlated neutron-proton pairs, the short-range correlations (SRC), can modify many of the nuclear properties. In this work we have introduced, for the first time, short range correlations in the calculation…

核理论 · 物理学 2023-09-19 Mateus R. Pelicer , Débora P. Menezes , Mariana Dutra , Odilon Lourenço

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…

核理论 · 物理学 2021-05-19 Fan Ji , Jinniu Hu , Hong Shen

As density increases, the shape of nuclei transitions to non-spherical ``nuclear pasta" structures. The physical properties of the nuclear pasta, such as thermal conductivity and elasticity, have implications for detecting continuous…

广义相对论与量子宇宙学 · 物理学 2025-02-18 Hong-Bo Li , Lijing Shao , Cheng-Jun Xia , Ren-Xin Xu

Background: Nuclear pasta matter, emerging due to the competition between the long-range Coulomb force and the short-range strong force, is believed to be present in astrophysical scenarios, such as neutron stars and core-collapse…

核理论 · 物理学 2020-05-27 B. Schuetrumpf , G. Martínez-Pinedo , P. -G. Reinhard

Complex and exotic nuclear geometries are expected to appear naturally in dense nuclear matter found in the crust of neutron stars and supernovae environment collectively referred to as nuclear pasta. The pasta geometries depend on the…

核理论 · 物理学 2017-05-15 F. J. Fattoyev , C. J. Horowitz , B. Schuetrumpf

Nuclear pasta, with non-spherical shapes, is expected near the base of the crust in neutron stars. Large scale molecular dynamics simulations of pasta show long lived topological defects that could increase electron scattering and reduce…

高能天体物理现象 · 物理学 2015-01-26 C. J. Horowitz , D. K. Berry , C. M. Briggs , M. E. Caplan , A. Cumming , A. S. Schneider

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…

高能天体物理现象 · 物理学 2020-08-05 Fan Ji , Jinniu Hu , Shishao Bao , Hong Shen

We investigate nuclear pasta structures at high temperatures in the framework of relativistic mean field model with Thomas-Fermi approximation. Typical pasta structures (droplet, rod, slab, tube, and bubble) are obtained, which form various…

核理论 · 物理学 2022-09-28 Cheng-Jun Xia , Toshiki Maruyama , Nobutoshi Yasutake , Toshitaka Tatsumi

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…

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