We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for th...We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for this Padé analysis are discussed.展开更多
Starting from the QHD-I model, the nucleon-nucleon interaction potential in hot/dense nuclear matter is studied. We find that the attractive and repulsive Yukawa potential between nucleons is modified by the variation...Starting from the QHD-I model, the nucleon-nucleon interaction potential in hot/dense nuclear matter is studied. We find that the attractive and repulsive Yukawa potential between nucleons is modified by the variation of Debye mass directly and, especially, the nucleon system described by this Yukawa potential will be unbounded at some critical T and μ. The critical point we get accords with that of L-G phase transition given by the P - pB phase diagram.展开更多
The influence of short-range correlations in nuclei was investigated with realistic nuclear force. The nucleon-nucleon interaction was renormalized with Vlowk technique and applied to the Green's function calculat...The influence of short-range correlations in nuclei was investigated with realistic nuclear force. The nucleon-nucleon interaction was renormalized with Vlowk technique and applied to the Green's function calculations. The Dyson equation was reformulated with algebraic diagrammatic constructions. We also analyzed the binding energy of 4He, calculated with chiral potential and CD-Bonn potential. The properties of Green's function with realistic nuclear forces are also discussed.展开更多
Within the spin-dependent Brueckner-Hatree-Fock framework, the equation of state ( EOS ) of the spin-polarized neutron matter has been investigated by adopting the realistic nucleon-nucleon interaction AV18 supplement...Within the spin-dependent Brueckner-Hatree-Fock framework, the equation of state ( EOS ) of the spin-polarized neutron matter has been investigated by adopting the realistic nucleon-nucleon interaction AV18 supplemented with the microscopic three-body force ( TBF ) based on the meson-exchange current method. The related physical quantities such as spin-symmetry energy, magnetic susceptibility and the Landau param-展开更多
The three-body force ( TBF ) effect on the proton fraction in the β-stable neutron star matter has been investigated within the iso-spin dependent Brueckner Hartree-Fock ( BHF ) framework, by adopting the microscopic...The three-body force ( TBF ) effect on the proton fraction in the β-stable neutron star matter has been investigated within the iso-spin dependent Brueckner Hartree-Fock ( BHF ) framework, by adopting the microscopic TBF based on a meson-exchange current model of interaction mediated by the excitation of NN couples and low-lying nucleon resonances The calculated proton fraction vs. baryon density is displayed展开更多
基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HF...基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HFB和裂变动力学计算的TDHFB两部分.在(x,y)方向采用形变谐振子基.在z方向上,为了描述裂变直至断点和断后的极端形变,采用Lagrange mesh方法.利用本程序,对240Pu的裂变势能路径和断点动力学过程进行了计算.结果表明,240Pu存在对称和非对称两条裂变路径;三轴形变可以显著降低第一(内)裂变位垒;对能在断裂过程中起着重要作用.展开更多
基金The project supported in part by National Natural Science Foundation of China under Grant No. 10205004 .Acknowledgments The authors are grateful to Dr. E. Epelbaum for helpful communications. J.F. Yang is grateful to Prof. B.A. Kniehl for his hospitality at the II. Institute for Theoretical Physics of Hamburg University where part of this work was done.
文摘We carried out a Padé approximant analysis on a compact factor of the T-matrlx for NN scattering to explore the nonperturbative renormalization prescription in a universal manner. The utilities and virtues for this Padé analysis are discussed.
文摘Starting from the QHD-I model, the nucleon-nucleon interaction potential in hot/dense nuclear matter is studied. We find that the attractive and repulsive Yukawa potential between nucleons is modified by the variation of Debye mass directly and, especially, the nucleon system described by this Yukawa potential will be unbounded at some critical T and μ. The critical point we get accords with that of L-G phase transition given by the P - pB phase diagram.
基金supported by the National Key Basic Research Program of China(Grant No.2013CB834402)the National Natural Science Foundation of China(Grant Nos.11235001,11320101004 and 11575007)
文摘The influence of short-range correlations in nuclei was investigated with realistic nuclear force. The nucleon-nucleon interaction was renormalized with Vlowk technique and applied to the Green's function calculations. The Dyson equation was reformulated with algebraic diagrammatic constructions. We also analyzed the binding energy of 4He, calculated with chiral potential and CD-Bonn potential. The properties of Green's function with realistic nuclear forces are also discussed.
文摘Within the spin-dependent Brueckner-Hatree-Fock framework, the equation of state ( EOS ) of the spin-polarized neutron matter has been investigated by adopting the realistic nucleon-nucleon interaction AV18 supplemented with the microscopic three-body force ( TBF ) based on the meson-exchange current method. The related physical quantities such as spin-symmetry energy, magnetic susceptibility and the Landau param-
文摘The three-body force ( TBF ) effect on the proton fraction in the β-stable neutron star matter has been investigated within the iso-spin dependent Brueckner Hartree-Fock ( BHF ) framework, by adopting the microscopic TBF based on a meson-exchange current model of interaction mediated by the excitation of NN couples and low-lying nucleon resonances The calculated proton fraction vs. baryon density is displayed
文摘基于Gogny核子-核子有效相互作用,发展了适用于描写原子核裂变过程、不包含任何对称性限制以及三维时间相关的Hartree-Fock-Bogoliubov理论计算程序(Gogny-TDHFB Code for Fission).程序包含静态裂变势能面计算的多维度集体自由度约束HFB和裂变动力学计算的TDHFB两部分.在(x,y)方向采用形变谐振子基.在z方向上,为了描述裂变直至断点和断后的极端形变,采用Lagrange mesh方法.利用本程序,对240Pu的裂变势能路径和断点动力学过程进行了计算.结果表明,240Pu存在对称和非对称两条裂变路径;三轴形变可以显著降低第一(内)裂变位垒;对能在断裂过程中起着重要作用.
