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相关论文: Non-Equilibrium Aspects of Fission Dynamics within…

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In nuclei with an odd nucleon number the non-vanishing spin number density is the source of a pseudo-magnetic field, which favors the splitting of the nucleon Cooper pairs. Such an pseudo-magnetic field is generated always in the dynamics…

核理论 · 物理学 2025-08-12 Aurel Bulgac , Ibrahim Abdurrahman , Matthew Kafker , Ionel Stetcu

Selected aspects of the description of neutron-induced fission in 240Pu in the framework of the nuclear energy density functional theory at finite temperature are presented. In particular, we discuss aspects pertaining to the choice of…

核理论 · 物理学 2013-04-18 N. Schunck

We have extended significantly the microscopic description of the fission process by examining a larger set of observables. We extract neutron and proton numbers of fission fragments, their spins and fission fragment relative orbital…

核理论 · 物理学 2023-06-12 Aurel Bulgac

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

We study the fission dynamics of 240Pu 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. The evolution…

核理论 · 物理学 2017-12-14 A. Bulgac , S. Jin , P. Magierski , K. J. Roche , I. Stetcu

Calculations are presented for the time evolution of $^{240}$Pu from the proximity of the outer saddle point until the fission fragments are well separated, using the time-dependent density functional theory extended to superfluid systems.…

核理论 · 物理学 2019-10-01 Aurel Bulgac , Shi Jin , Kenneth Roche , Nicolas Schunck , Ionel Stetcu

We describe the fissioning dynamics of Pu240 from a configuration in the proximity of the outer fission barrier to full scission and the formation of the fragments within an implementation of density functional theory extended to superfluid…

核理论 · 物理学 2016-03-30 Aurel Bulgac , Piotr Magierski , Kenneth J. Roche , Ionel Stetcu

The saddle-to-scission dynamics of the induced fission process is explored using a microscopic finite-temperature model based on time-dependent nuclear density functional theory (TDDFT), that allows to follow the evolution of local…

核理论 · 物理学 2023-07-27 B. Li , D. Vretenar , Z. X. Ren , T. Nikšić , J. Zhao , P. W. Zhao , J. Meng

Fission resulting from collision of atomic nuclei is systematically investigated based on time-dependent density functional calculations. Time-dependent density functional theory (TDDFT) is a framework, which enables us to treat quantum…

核理论 · 物理学 2019-03-26 Yoritaka Iwata

A microscopic finite-temperature model based on time-dependent nuclear density functional theory (TDDFT), is employed to study the induced-fission process of $^{226}$Th. The saddle-to-scission dynamics of this process is explored, starting…

核理论 · 物理学 2024-09-11 B. Li , D. Vretenar , T. Nikšić , P. W. Zhao , J. Meng

The number and properties of the neutrons and photons emitted in nuclear fission are directly related to the excitation energy of the fission fragments when they are formed at scission. Though not observable experimentally because of the…

核理论 · 物理学 2025-10-09 Antonio Bjelčić , Nicolas Schunck , Marc Verriere

Understanding the mechanisms of induced nuclear fission for a broad range of neutron energies could help resolve fundamental science issues, such as the formation of elements in the universe, but could have also a large impact on societal…

核理论 · 物理学 2015-03-26 N. Schunck , D. Duke , H. Carr

Nuclear time-dependent density functional theory is used to investigate spin generation and entanglement of fission fragments in spontaneous fission of $^{252}$Cf, incorporating both axial and non-axial deformations. Axially symmetric…

核理论 · 物理学 2026-05-26 B. Li , D. D. Zhang , D. Vretenar , T. Nikšić , P. W. Zhao , J. Meng

The role of dynamical pairing in induced fission dynamics is investigated using the time-dependent generator coordinate method in the Gaussian overlap approximation, based on the microscopic framework of nuclear energy density functionals.…

核理论 · 物理学 2021-10-27 Jie Zhao , Tamara Nikšić , Dario Vretenar

I describe the foundation of a Density Functional Theory approach to include pairing correlations, which was applied to a variety of systems ranging from dilute fermions, to neutron stars and finite nuclei. Ground state properties as well…

核理论 · 物理学 2017-08-23 Aurel Bulgac

Static and dynamic aspects of the fission process of $^{226}$Th are analyzed in a self-consistent framework based on relativistic energy density functionals. Constrained relativistic mean-field (RMF) calculations in the collective space of…

核理论 · 物理学 2017-08-30 H. Tao , J. Zhao , Z. P. Li , T. Niksic , D. Vretenar

Fission-fragment properties have been calculated for thermal neutron-induced fission on a $^{239}\textrm{Pu}$ target, using constrained Hartree-Fock-Bogoliubov calculations with a finite-range effective interaction. A quantitative criterion…

核理论 · 物理学 2015-05-14 W. Younes , D. Gogny

The dynamics of low-energy induced fission is explored using a consistent microscopic framework that combines the time-dependent generator coordinate method (TDGCM) and time-dependent nuclear density functional theory (TDDFT). While the…

核理论 · 物理学 2022-04-27 Z. X. Ren , J. Zhao , D. Vretenar , T. Niksic , P. W. Zhao , J. Meng

The intrinsic spins and their correlations are the least understood characteristics of fission fragments from both theoretical and experimental points of view. In many nuclear reactions the emerging fragments are typically excited and…

核理论 · 物理学 2021-04-20 A. Bulgac , I. Abdurrahman , S. Jin , K. Godbey , N. Schunck , I. Stetcu

Eighty years after its experimental discovery, a microscopic description of induced nuclear fission based solely on the interactions between neutrons and protons and quantum many-body methods still poses formidable challenges. The goal of…

核理论 · 物理学 2015-06-17 N. Schunck , D. Duke , H. Carr , A. Knoll
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