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相关论文: Coulomb screening effect on the nuclear-pasta stru…

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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

We present the self-consistent, non-perturbative analysis of isospin mixing using the nuclear density functional approach and the rediagonalization of the Coulomb interaction in the good-isospin basis. The largest isospin-breaking effects…

核理论 · 物理学 2009-09-02 W. Satula , J. Dobaczewski , W. Nazarewicz , M. Rafalski

Density functional theory (DFT) is an essential building block for modern theoretical physics, chemistry, and engineering, especially those concerning electronic properties. Through decades of development, various program packages for…

材料科学 · 物理学 2022-11-21 Yusuke Nomura , Ryosuke Akashi

We perform systematic calculations of pairing gaps in semi-magic nuclei across the nuclear chart using the Energy Density Functional method and a {\it non-empirical} pairing functional derived, without further approximation, at lowest order…

核理论 · 物理学 2010-11-02 T. Lesinski , T. Duguet , K. Bennaceur , J. Meyer

The Breit correction, the finite-light-speed correction for the Coulomb interaction of the electron-electron interaction in $ O \left( 1/ c^2 \right) $, is introduced to density functional theory (DFT) based on the non-relativistic…

计算物理 · 物理学 2020-10-20 Tomoya Naito , Ryosuke Akashi , Haozhao Liang , Shinji Tsuneyuki

We describe the fission dynamics of $^{240}$Pu within an implementation of the Density Functional Theory (DFT) extended to superfluid systems and real-time dynamics. We demonstrate the critical role played by the pairing correlations, which…

核理论 · 物理学 2017-06-29 Aurel Bulgac , Shi Jin , Piotr Magierski , Kenneth J. Roche , Ionel Stetcu

The equation of state (EOS) for nuclear and neutron rich matter is investigated in a Relativistic Mean Field (RMF) model. New shell states are found that minimize the free energy per baryon, calculated in a spherical Wigner-Seitz (WS)…

核理论 · 物理学 2008-11-26 C. J. Horowitz , G. Shen

Neutron star matter spans a wide range of densities, from that of nuclei at the surface to exceeding several times normal nuclear matter density in the core. While terrestrial experiments, such as nuclear or heavy-ion collision experiments,…

高能天体物理现象 · 物理学 2023-12-19 Suprovo Ghosh , Debarati Chatterjee , Jürgen Schaffner-Bielich

Reliable predictions of nuclear properties are needed as much to answer fundamental science questions as in applications such as reactor physics or data evaluation. Nuclear density functional theory is currently the only microscopic, global…

核理论 · 物理学 2015-01-23 N. Schunck , J. D. McDonnell , D. Higdon , J. Sarich , S. Wild

The effects of a long range electronic potential on a one dimensional chain of spinless fermions are investigated by numerical techniques (Exact Diagonalisation of rings with up to 30 sites complemented by finite size analysis) and analytic…

强关联电子 · 物理学 2009-10-31 Sylvain Capponi , Didier Poilblanc , Thierry Giamarchi

Dynamical mean field theory (DMFT) is used to study neutron matter, both with and without admixture of the proton fraction. The system is approximated by the lattice Habbard model. The corresponding equation of state as a function of…

强关联电子 · 物理学 2021-05-26 Maxim Velikanov , Alexey N. Rubtsov , Boris Krippa

From microscopic point-dipole model calculations of the screening of the Coulomb interaction in non-polar systems by polarizable atoms, it is known that screening strongly depends on dimensionality. For example, in one dimensional systems…

原子与分子团簇 · 物理学 2017-04-19 L. Peters , E. Sasioglu , S. Rossen , C. Friedrich , S. Bluegel , M. I. Katsnelson

We study the Okamoto-Nolen-Schiffer (ONS) anomaly in the binding energy of mirror nuclei at high density by adding a single neutron or proton to a quark gluon plasma. In this high-density limit we find an anomaly equal to two-thirds of the…

核理论 · 物理学 2009-11-06 C. J. Horowitz , J. Piekarewicz

The critical densities and impact of forming \D resonances in neutron stars are investigated within an extended nonlinear relativistic mean-field (RMF) model. The critical densities for the formation of four different charge states of \D…

核理论 · 物理学 2015-07-08 Bao-Jun Cai , Farrukh J. Fattoyev , Bao-An Li , William G. Newton

we study the effect of Coulomb interactions on balance energy for various colliding nuclei in terms of mass asymmetry. This study shows that the balance energy is affected by the Coulomb interactions as well as different nuclear equations…

核理论 · 物理学 2011-08-01 Varinderjit Kaur , Suneel Kumar , Rajeev K. Puri , S. Bhattacharya

Recent laboratory experiments have measured fusion cross sections at center-of-mass energies low enough for the effects of atomic and molecular electrons to be important. To extract the cross section for bare nuclei from these data (as…

核理论 · 物理学 2009-10-28 T. D. Shoppa , M. Jeng , S. E. Koonin , K. Langanke , R. Seki

In light of the forthcoming high precision quasielastic electron scattering data from Jefferson Lab, it is timely for the various approaches to nuclear structure to make robust predictions for the associated response functions. With this in…

核理论 · 物理学 2016-01-27 Ian C. Cloët , Wolfgang Bentz , Anthony W. Thomas

Recent analyses of several isospin effects in heavy-ion reactions have allowed us to constrain the density dependence of nuclear symmetry energy at sub-saturation densities within a narrow range. Combined with constraints on the Equation of…

核理论 · 物理学 2008-06-24 Bao-An Li , Lie-Wen Chen , Che Ming Ko , Plamen G. Krastev , Aaron Worley

Asymmetric nuclear matter is investigated in the low density region below the nuclear saturation density. Microscopic calculations based on the Dirac Brueckner Hartree-Fock (DBHF) approach with realistic nucleon-nucleon potentials are used…

核理论 · 物理学 2008-11-26 J. Margueron , E. Van Dalen , C. Fuchs

The status of relativistic nuclear many-body calculations of nuclear systems to be built up in terms of protons and neutrons is reviewed. In detail, relativistic effects on several aspects of nuclear matter such as the effective mass,…

核理论 · 物理学 2015-03-13 E. N. E. van Dalen , H. Müther
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