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相关论文: Quantum Simulations of Nuclei and Nuclear Pasta wi…

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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

The first results of a new three-dimensional, finite temperature Skyrme-Hartree-Fock+BCS study of the properties of inhomogeneous nuclear matter at densities and temperatures leading to the transition to uniform nuclear matter are…

太阳与恒星天体物理 · 物理学 2009-05-05 W. G. Newton J. R. Stone

We present simulations of neutron-rich matter at subnuclear densities, like supernova matter, with the time-dependent Hartree-Fock approximation at temperatures of several MeV. The initial state consists of $\alpha$ particles randomly…

The dense neutron-rich matter found in supernovae and neutron stars is expected to form complex nonuniform phases referred to as nuclear pasta. The pasta shapes depend on density, temperature and proton fraction and determine many transport…

核理论 · 物理学 2014-12-03 A. S. Schneider , D. K. Berry , C. M. Briggs , M. E. Caplan , C. J. Horowitz

The first results of a new three-dimensional, finite temperature Skyrme-Hartree-Fock+BCS study of the properties of inhomogeneous nuclear matter at densities and temperatures leading to the transition to uniform nuclear matter are…

太阳与恒星天体物理 · 物理学 2011-05-25 W. G. Newton

In this work we study molecular dynamics simulations of symmetric nuclear matter using a semi-classical nucleon interaction model. We show that, at sub-saturation densities and low temperatures, the solutions are non-homogeneous structures…

核理论 · 物理学 2015-06-19 P. A. Giménez Molinelli , C. O. Dorso

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

The formation of complex nonuniform phases of nuclear matter, known as nuclear pasta, is studied with molecular dynamics simulations containing 51200 nucleons. A phenomenological nuclear interaction is used that reproduces the saturation…

核理论 · 物理学 2013-12-25 A. S. Schneider , C. J. Horowitz , J. Hughto , D. K. Berry

Background: Exotic non-spherical nuclear pasta shapes are expected in nuclear matter at just below saturation density because of competition between short range nuclear attraction and long range Coulomb repulsion. Purpose: We explore the…

核理论 · 物理学 2015-07-01 M. E. Caplan , A. S. Schneider , C. J. Horowitz , D. K. Berry

Background: Nuclear pasta phases, present in the inner crust of neutron stars, are associated with nucleonic matter at sub-saturation densities arranged in regular shapes. Those complex phases, residing in a layer which is approximately 100…

核理论 · 物理学 2016-05-02 B. Schuetrumpf , W. Nazarewicz

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 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…

核理论 · 物理学 2014-12-04 Helena Pais , William G. Newton , Jirina R. Stone

Background: In the bottom layer of the inner crust of neutron stars, various crystalline structures are expected to emerge that are collectively called ``nuclear pasta.'' It is desired to know properties of nuclear pasta in a wide variety…

核理论 · 物理学 2026-05-28 Yo Nakamura , Kazuyuki Sekizawa

Nuclear density functional theory provides a unified description of finite nuclei and bulk nuclear matter, and is widely used to model the neutron star equation of state. However, extrapolations to supra-saturation densities require a…

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 matter under astrophysical conditions is explored with time-dependent and static Hartree-Fock calculations. The focus is in a regime of densities where matter segregates into liquid and gaseous phases unfolding a rich scenario of…

核理论 · 物理学 2014-11-19 B. Schuetrumpf , K. Iida , J. A. Maruhn , P. -G. Reinhard

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

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…

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

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
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