403 citations · 3.4k across the 79 of their papers we have counts for
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Time-dependent density-functional description of nuclear dynamics
Takashi Nakatsukasa, Kenichi Matsuyanagi, Masayuki Matsuo +1
We present the basic concepts and recent developments in the time-dependent density functional theory (TDDFT) for describing nuclear dynamics at low energy. The symmetry breaking i…
Time-dependent Hartree-Fock calculations for multinucleon transfer and quasifission processes in the Ni+U reaction
Kazuyuki Sekizawa, Kazuhiro Yabana
Background: Multinucleon transfer (MNT) and quasifission (QF) processes are dominant processes in low-energy collisions of two heavy nuclei. They are expected to be useful to produ…
Multinucleon transfer reaction in time-dependent Hartree-Fock theory
Kazuyuki Sekizawa, Kazuhiro Yabana
Time-dependent Hartree-Fock (TDHF) theory has achieved a remarkable success in describing and understanding nuclear many-body dynamics from nucleons' degrees of freedom. We here re…
Strong Orientation Dependence of Multinucleon Transfer Processes in U+Sn Reaction
Kazuyuki Sekizawa, Kazuhiro Yabana
We theoretically investigate multinucleon transfer (MNT) processes in U+Sn reaction at MeV/ using the time-dependent Hartree-Fock (TDHF) the…
Particle-number projection method in time-dependent Hartree-Fock theory: Properties of reaction products
Kazuyuki Sekizawa, Kazuhiro Yabana
Background: The time-dependent Hartree-Fock (TDHF) theory has been successful in describing low-energy heavy ion collisions. Recently, we have shown that multinucleon transfer proc…
Time-dependent Hartree-Fock calculations for multi-nucleon transfer processes: Effects of particle evaporation on production cross sections
Kazuyuki Sekizawa, Kazuhiro Yabana
We present a microscopic calculation of multi-nucleon transfer reactions employing the time-dependent Hartree-Fock (TDHF) theory. In our previous publication [Phys. Rev. C 88, 0146…
Imaginary-time theory for triple-alpha reaction rate
T. Akahori, Y. Funaki, K. Yabana
Using imaginary-time theory, it is shown that the triple-alpha reaction rate can be reliably calculated without the need to solve scattering problems involving three charged partic…
Low-energy E1 strength in select nuclei: Possible constraints on the neutron skins and the symmetry energy
Tsunenori Inakura, Takashi Nakatsukasa, Kazuhiro Yabana
Correlations between low-lying electric dipole (E1) strength and neutron skin thickness are systematically investigated with the fully self-consistent random-phase approximation us…
Nuclear "pasta" structures in low-density nuclear matter and neutron star crust
Minoru Okamoto, Toshiki Maruyama, Kazuhiro Yabana +1
In neutron star crust, non-uniform structure of nuclear matter is expected, which is called the "pasta" structure. From the recent studies of giant flares in magnetars, these struc…
Deformation and cluster structures in C studied with configuration mixing using Skyrme interactions
Y. Fukuoka, S. Shinohara, Y. Funaki +2
We report an investigation of the structure of C nucleus employing a newly developed configuration-mixing method. In the three-dimensional coordinate-space representation, w…
Time-dependent Hartree-Fock calculations for multinucleon transfer processes in Ca+Sn, Ca+Pb, and Ni+Pb reactions
Kazuyuki Sekizawa, Kazuhiro Yabana
Multinucleon transfer processes in heavy-ion reactions at energies slightly above the Coulomb barrier are investigated in a fully microscopic framework of the time-dependent Hartre…
Stochastic approach to correlations beyond the mean field with the Skyrme interaction
Y. Fukuoka, T. Nakatsukasa, Y. Funaki +1
Large-scale calculation based on the multi-configuration Skyrme density functional theory is performed for the light N=Z even-even nucleus, 12C. Stochastic procedures and the imagi…
Linear-response calculation in the time-dependent density functional theory
Takashi Nakatsukasa, Tsunenori Inakura, Paolo Avogadro +3
Linear response calculations based on the time-dependent density-functional theory are presented. Especially, we report results of the finite amplitude method which we have recentl…
Imaginary-time method for radiative capture reaction rate
Kazuhiro Yabana, Yasuro Funaki
We propose a new computational method for astrophysical reaction rate of radiative capture process. In the method, an evolution of a wave function is calculated along the imaginary…
Three dimensional structure of low-density nuclear matter
Minoru Okamoto, Toshiki Maruyama, Kazuhiro Yabana +1
We numerically explore the pasta structures and properties of low-density nuclear matter without any assumption on the geometry. We observe conventional pasta structures, while a m…
Emergence of pygmy dipole resonances: Magic numbers and neutron skins
Tsunenori Inakura, Takashi Nakatsukasa, Kazuhiro Yabana
The pygmy dipole resonances (PDR) for even-even nuclei in 8=<Z=<40 are studied performing a systematic calculation of the random-phase approximation with the Skyrme functional of S…
Three-dimensional calculation of inhomogeneous structure in low-density nuclear matter
Minoru Okamoto, Toshiki Maruyama, Kazuhiro Yabana +1
In low-density nuclear matter which is relevant to the crust region of neutron stars and collapsing stage of supernovae, non-uniform structures called "nuclear pasta" are expected.…
Linear response calculation using the canonical-basis TDHFB with a schematic pairing functional
Shuichiro Ebata, Takashi Nakatsukasa, Kazuhiro Yabana
A canonical-basis formulation of the time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory is obtained with an approximation that the pair potential is assumed to be diagonal in th…
Canonical-basis time-dependent Hartree-Fock-Bogoliubov theory and linear-response calculations
Shuichiro Ebata, Takashi Nakatsukasa, Tsunenori Inakura +3
We present simple equations for a canonical-basis formulation of the time-dependent Hartree-Fock-Bogoliubov (TDHFB) theory. The equations are obtained from the TDHFB theory with an…
Self-consistent calculation of nuclear photoabsorption cross section: Finite amplitude method with Skyrme functionals in the three-dimensional real space
Tsunenori Inakura, Takashi Nakatsukasa, Kazuhiro Yabana
The finite amplitude method (FAM), which we have recently proposed (T. Nakatsukasa, T. Inakura, and K. Yabana, Phys. Rev. C 76, 024318 (2007)), simplifies significantly the fully s…
Finite amplitude method for the RPA solution
Takashi Nakatsukasa, Tsunenori Inakura, Kazuhiro Yabana
We propose a practical method to solve the random-phase approximation (RPA) in the self-consistent Hartree-Fock (HF) and density-functional theory. The method is based on numerical…
Real-time Skyrme TDHF dynamics of giant resonances
Takashi Nakatsukasa, Kazuhiro Yabana
Nuclear dynamics of giant resonances are investigated with the real-time Skyrme TDHF method. The TDHF equation is explicitly linearized with respect to variation of single-particle…
Nuclear dynamics in time-dependent picture
Takashi Nakatsukasa, Makoto Ito, Kazuhiro Yabana
Using the time-dependent theory of quantum mechanics, we investigate nuclear electric dipole responses. The time evolution of a wave function is explicitly calculated in the coordi…
Configuration mixing calculation for complete low-lying spectra with the mean-field Hamiltonian
S. Shinohara, H. Ohta, T. Nakatsukasa +1
We propose a new theoretical approach to ground and low-energy excited states of nuclei extending the nuclear mean-field theory. It consists of three steps: stochastic preparation…