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Precise theoretical calculations of open-shell atomic systems are critical for extracting fundamental physics parameters from precision experiments. Here we present proof-of-principle calculations illustrating the effectiveness of the…

原子物理 · 物理学 2022-12-19 G. Tenkila , V. Chand , T. Miyagi , H. Patel , S. R. Stroberg , R. F. Garcia Ruiz , J. D. Holt

The dipole response function of nuclear matter at zero and finite temperatures is investigated by employing the linearized version of the extended TDHF theory with a non-Markovian binary collision term. Calculations are carried out for…

核理论 · 物理学 2007-05-23 S. Ayik , A. Gokalp , O. Yilmaz , K. Bozkurt

Ab initio calculations of the quasi-elastic electromagnetic and neutral-weak response functions of 4He and 12C are carried out for the first time. They are based on a realistic approach to nuclear dynamics, in which the strong interactions…

核理论 · 物理学 2016-02-15 A. Lovato , S. Gandolfi , J. Carlson , Steven C. Pieper , R. Schiavilla

We present an introduction to ab initio nuclear theory with a focus on nuclear reactions. After a high-level overview of ab initio approaches in nuclear physics, we give a more detailed description of the no-core shell model technique…

核理论 · 物理学 2022-04-06 Petr Navratil , Sofia Quaglioni

A method for determining the leading quantum contributions to the effective action for both zero and finite temperatures is presented. While it is described in the context of a scalar field theory, it can be straight-forwardly extended to…

高能物理 - 唯象学 · 物理学 2010-11-01 Clarence L. Lee

The key problem of statistical physics standing over one hundred years is how to exactly calculate the partition function (or free energy) of many-body interaction systems, which severely hinders application of the theory for realistic…

统计力学 · 物理学 2019-04-26 Bo-Yuan Ning , Le-Cheng Gong , Tsu-Chien Weng , Xi-Jing Ning

We calculate the equation of state of asymmetric nuclear matter at finite temperature based on chiral effective field theory interactions to next-to-next-to-next-to-leading order. Our results assess the theoretical uncertainties from the…

核理论 · 物理学 2023-02-21 J. Keller , K. Hebeler , A. Schwenk

The reaction mechanism of nucleus-nucleus collisions at projectile energies around the Fermi energy is investigated with emphasis on the production of fragmentation-like residues. The results of simulations are compared to experimental mass…

核理论 · 物理学 2008-11-26 M. Veselsky , G. A. Souliotis

We survey approaches to nonrelativistic density functional theory (DFT) for nuclei using progress toward ab initio DFT for Coulomb systems as a guide. Ab initio DFT starts with a microscopic Hamiltonian and is naturally formulated using…

核理论 · 物理学 2009-12-04 J. E. Drut , R. J. Furnstahl , L. Platter

After a brief review of the theoretical description of nuclei based on nonrelativistic many-body theory and realistic hamiltonians, these lectures focus on its application to the analysis of the electroweak response. Special emphasis is…

核理论 · 物理学 2015-05-13 Omar Benhar

The nuclear energy density functional method at finite temperature is a useful tool for studies of nuclear structure at high excitation, and also for researches of nuclear matter involved in explosive stellar phenomena and neutron stars.…

核理论 · 物理学 2023-03-02 Takashi Nakatsukasa

The Q value and optimal exciting energy of the hypothetical superheavy nuclei in cold fusion reaction are calculated with relativistic mean field model and semiemperical shell model mass equation(SSME) and the validity of the two models is…

核理论 · 物理学 2014-11-18 X. H. Zhong , L. Li , P. Z. Ning

A simple expression is obtained for the low temperature behavior of the energy and entropy of finite nuclei for $20\leq A\leq 250$. The dependence on $A$ of these quantities is for the most part due to the presence of the asymmetry energy.

核理论 · 物理学 2015-05-13 S. M. M. Coelho , C. Zander , H. g. Miller

We present some recent developments on the nuclear many-body problem, such as the treatment of high-order correlations and finite temperature in the description of in-medium two-nucleon propagators. In this work we discuss two-time…

核理论 · 物理学 2020-01-08 Elena Litvinova , Peter Schuck , Herlik Wibowo

An electron density functional approach for the calculation of the nuclear multipole moments is presented. The electronic matrix elements entering the experimentally observed hyperfine electron-nucleus interaction constants in atoms are…

核理论 · 物理学 2007-05-23 R. L. Pavlov , P. P. Raychev , V. P. Garistov , M. Dimitrova-Ivanovich , J. Maruani

We introduce an efficient and numerically stable method for calculating linear response functions $\chi(\vec{q},\omega)$ of quantum systems at finite temperatures. The method is a combination of numerical solution of the time-dependent…

统计力学 · 物理学 2009-11-07 Toshiaki Iitaka , Toshikazu Ebisuzaki

We discuss finite temperature quantum Monte Carlo methods in the framework of the interacting nuclear shell model. The methods are based on a representation of the imaginary-time many-body propagator as a superposition of one-body…

核理论 · 物理学 2009-11-06 Y. Alhassid

This programmatic paper lays down the possibility to reconcile the necessity to resum many-body correlations into the energy kernel with the fact that safe multi-reference energy density functional (EDF) calculations cannot be achieved…

核理论 · 物理学 2016-01-27 T. Duguet , M. Bender , J. -P. Ebran , T. Lesinski , V. Somà

A model to calculate nuclear responses considering short-range correlation effects is presented. The model is applied to the study of electromagnetic responses induced by one-body operators. We calculate one- and two-nucleon emission…

核理论 · 物理学 2009-11-06 Giampaolo Co' , Antonio M. Lallena

Nucleon selfenergies and spectral functions are calculated at the saturation density of symmetric nuclear matter at finite temperatures. In particular, the behaviour of these quantities at temperatures above and close to the critical…

核理论 · 物理学 2008-11-26 T. Alm , G. Roepke , A. Schnell , N. H. Kwong , H. S. Koehler