Single-particle dissipation in TDHF studied from a phase-space perspective

Abstract

We study dissipation and relaxation processes within the time-dependent Hartree-Fock approach using the Wigner distribution function. On the technical side we present a geometrically unrestricted framework which allows us to calculate the full six-dimensional Wigner distribution function. With the removal of geometrical constraints, we are now able to extend our previous phase-space analysis of heavy-ion collisions in the reaction plane to unrestricted mean-field simulations of nuclear matter on a three-dimensional Cartesian lattice. From the physical point of view we provide a quantitative analysis on the stopping power in TDHF. This is linked to the effect of transparency. For the medium-heavy ${}^{40}$Ca+${}^{40}$Ca system we examine the impact of different parametrizations of the Skyrme force, energy-dependence, and the significance of extra time-odd terms in the Skyrme functional.

7 pages, 4 figures, 2 videos. arXiv admin note: substantial text overlap with arXiv:1201.5269

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Cited by in corpus (15)

• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions
• The TDHF Code Sky3D
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• Microscopic approach to coupled-channels effects on fusion
• Low-Energy Heavy-Ion Reactions and the Skyrme Effective Interaction
• Comparison of Heavy-Ion Transport Simulations: Mean-field Dynamics in a Box
• Enhanced nucleon transfer in tip collisions of ${}^{238}$U+${}^{124}$Sn
• Time-Dependent Hartree-Fock Approach to Nuclear Pasta at Finite Temperature
• Dissipation dynamics and spin-orbit force in time-dependent Hartree-Fock theory
• Production mechanism of neutron-rich nuclei around $N=126$ in multi-nucleon transfer reaction ${}^{132}$Sn + ${}^{208}$Pb
• Importance of realistic phase space representations of initial quantum fluctuations using the stochastic mean-field approach for fermions
• Estimating the relevance of predictions from nuclear mean-field models
• Nuclear Quantum Many-Body Dynamics: From Collective Vibrations to Heavy-Ion Collisions (2nd edition)
• Pre-equilibrium effects in charge-asymmetric low-energy reactions
• Dynamics of one-dimensional correlated nuclear systems within non-equilibrium Green's function theory