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相关论文: Nuclear Dynamics with the Sky3D code

200 篇论文

Classical mechanics and Time Dependent Hartree-Fock (TDHF) calculations of heavy ions collisions are performed to study the rotation of a deformed nucleus in the Coulomb field of its partner. This reorientation is shown to be independent on…

核理论 · 物理学 2009-11-10 Cedric Simenel , Philippe Chomaz , Gilles De France

There are many complementing strategies to estimate the extrapolation errors of a model which was calibrated in least-squares fits. We consider the Skyrme-Hartree-Fock model for nuclear structure and dynamics and exemplify the following…

核理论 · 物理学 2015-06-22 J. Erler , P. -G. Reinhard

We describe a method of solving the nuclear Skyrme-Hartree-Fock problem by using a deformed Cartesian harmonic oscillator basis. The complete list of expressions required to calculate local densities, total energy, and self-consistent…

核理论 · 物理学 2009-10-30 J. Dobaczewski , J. Dudek

Two promising directions beyond inclusive deep inelastic scattering experiments, aimed at unveiling the three dimensional structure of the bound nucleon, are reviewed, considering in particular the $^3$He nucleus. The 3D structure in…

The isospin dependence of the spin-orbit potential is investigated for an effective Skyrme-like energy functional suitable for density dependent Hartree-Fock calculations. The magnitude of the isospin dependence is obtained from a fit to…

核理论 · 物理学 2016-09-08 M. M. Sharma , G. Lalazissis , J. König , P. Ring

A possibility for fundamental constants to vary in time is suggested by theories unifying gravity with other interactions. In this article we examine proposals to use optical transitions of Sr, Dy, YbII and YbIII for the search of the time…

原子物理 · 物理学 2009-02-05 V. A. Dzuba , V. V. Flambaum , M. V. Marchenko.

The nucleus-nucleus interaction potentials in heavy-ion fusion reactions are extracted from the microscopic time-dependent Hartree-Fock theory for mass symmetric reactions $^{16}$O${}+^{16}$O, $^{40}$Ca${}+^{40}$Ca, $^{48}$Ca${}+^{48}$Ca…

核理论 · 物理学 2008-11-26 Kouhei Washiyama , Denis Lacroix

The nonlinear behavior of higher dimensional black hole spacetimes is of interest in several contexts, ranging from an understanding of cosmic censorship to black hole production in high-energy collisions. However, nonlinear numerical…

广义相对论与量子宇宙学 · 物理学 2014-10-15 Helvi Witek , Hirotada Okawa , Vitor Cardoso , Leonardo Gualtieri , Carlos Herdeiro , Masaru Shibata , Ulrich Sperhake , Miguel Zilhao

Although the overall time-scale for nuclear fission is long, suggesting a slow process, rapid shape evolution occurs in its later stages near scission. Theoretical prediction of the fission fragments and their characteristics are often…

核理论 · 物理学 2014-06-03 C. Simenel , A. S. Umar

We describe the new version (v2.49t) of the code HFODD which solves the nuclear Skyrme Hartree-Fock (HF) or Skyrme Hartree-Fock-Bogolyubov (HFB) problem by using the Cartesian deformed harmonic-oscillator basis. In the new version, we have…

We investigate the order-by-order convergence behavior of many-body perturbation theory (MBPT) as a simple and efficient tool to approximate the ground-state energy of closed-shell nuclei. To address the convergence properties directly, we…

核理论 · 物理学 2016-04-20 Alexander Tichai , Joachim Langhammer , Sven Binder , Robert Roth

Weakly-bound deformed nuclei have been studied by the Skyrme Hartree-Fock-Bogoliubov (HFB) approach in large coordinate-space boxes. In particular, the box-size dependence of the HFB calculations of weakly-bound deformed nuclei are…

核理论 · 物理学 2015-06-17 Y. N. Zhang , J. C. Pei , F. R. Xu

In this paper we motivate, formulate and analyze the Multi-Configuration Time-Dependent Hartree-Fock (MCTDHF) equations for molecular systems under Coulomb interaction. They consist in approximating the N-particle Schrodinger wavefunction…

数学物理 · 物理学 2015-05-13 C. Bardos , I. Catto , N. Mauser , S. Trabelsi

Recent associations of high-energy neutrinos with active galactic nuclei (AGN) have revived the interest in leptohadronic models of radiation from astrophysical sources. The rapid increase in the amount of acquired multi-messenger data will…

高能天体物理现象 · 物理学 2024-07-08 S. I. Stathopoulos , M. Petropoulou , G. Vasilopoulos , A. Mastichiadis

We present calculations of ground state properties of spherical, doubly closed-shell nuclei from $^{16}$O to $^{208}$Pb employing the techniques of many-body perturbation theory using a separable density dependent monopole interaction. The…

核理论 · 物理学 2009-11-06 P. Stevenson , M. R. Strayer , J. Rikovska Stone

The evolution of the Dipole Response in nuclei with strong neutron excess is studied in the Hartree-Fock plus Random Phase Approximation with Skyrme forces. We find that the neutron excess increases the fragmentation of the isovector Giant…

核理论 · 物理学 2009-10-30 F. Catara , E. G. Lanza , M. A. Nagarajan , A. Vitturi

The time-dependent Skyrme Hartree-Fock calculations have been performed to study $^{24}$Mg +$^{24}$Mg collisions. The twisted boundary conditions, which can avoid finite box-size effects of the employed 3D coordinate space, have been…

核理论 · 物理学 2019-08-01 C. Q. He , J. C. Pei , Yu Qiang , Na Fei

We employ the time-dependent Hartree-Fock (TDHF) method to study various aspects of the reactions utilized in searches for superheavy elements. These include capture cross-sections, quasifission, prediction of $P_{\mathrm{CN}}$, and other…

核理论 · 物理学 2016-04-12 A. S. Umar , V. E. Oberacker

This work establishes the time-dependent relativistic Hartree-Fock (TD-RHF) model with spherical symmetry for the first time. The time-dependent integro-differential Dirac equations are solved by expanding Dirac spinors on the spherical…

核理论 · 物理学 2024-06-13 Jing Geng , Zhi Heng Wang , Peng Wei Zhao , Yi Fei Niu , Haozhao Liang , Wen Hui Long

The fine structure of the scissors mode is investigated within the Time Dependent Hartree-Fock-Bogoliubov (TDHFB) approach. The solution of TDHFB equations by the Wigner Function Moments (WFM) method predicts a splitting of the scissors…

核理论 · 物理学 2020-08-26 E. B. Balbutsev , I. V. Molodtsova , A. V. Sushkov , N. Yu. Shirikova , P. Schuck