scholarly journals Covariant Density Functional Theory in Nuclear Physics and Astrophysics

2020 ◽  
Vol 70 (1) ◽  
pp. 21-41 ◽  
Author(s):  
Junjie Yang ◽  
J. Piekarewicz
Keyword(s):  
Density Functional Theory ◽  
Neutron Stars ◽  
Nuclear Physics ◽  
Density Functional ◽  
Theoretical Research ◽  
Electromagnetic Spectrum ◽  
Full Potential ◽  
Rare Isotope ◽  
Functional Theory ◽  
Nuclear Density Functional Theory

How does subatomic matter organize itself? Neutron stars are cosmic laboratories uniquely poised to answer this fundamental question that lies at the heart of nuclear science. Newly commissioned rare isotope facilities, telescopes operating across the entire electromagnetic spectrum, and ever more sensitive gravitational wave detectors will probe the properties of neutron-rich matter with unprecedented precision over an enormous range of densities. A coordinated effort between observation, experiment, and theoretical research is of paramount importance for realizing the full potential of these investments. Theoretical nuclear physics provides valuable insights into the properties of neutron-rich matter in regimes that are not presently accessible to experiment or observation. In particular, nuclear density functional theory is likely the only tractable framework that can bridge the entire nuclear landscape by connecting finite nuclei to neutron stars. This compelling connection is the main scope of the present review.

scholarly journals MADNESS applied to density functional theory in chemistry and nuclear physics

2007 ◽  
Vol 78 ◽  
pp. 012018 ◽  
Author(s):  
G I Fann ◽  
R J Harrison ◽  
G Beylkin ◽  
J Jia ◽  
R Hartman-Baker ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Nuclear Physics ◽  
Density Functional ◽  
Functional Theory

Density Functional Theory Approach for Muon Sites Estimation in Mn3Sn

2021 ◽  
Vol 1028 ◽  
pp. 199-203
Author(s):  
Fiqhri Heda Murdaka ◽  
Edi Suprayoga ◽  
Abdul Muizz Pradipto ◽  
Kohji Nakamura ◽  
Agustinus Agung Nugroho
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Local Density ◽  
Full Potential ◽  
Theory Approach ◽  
Generalized Gradient ◽  
Functional Theory ◽  
Electrostatic Potential Calculation ◽  
A Site ◽  
Linearized Augmented Plane Wave

We report the estimation of muon sites inside Mn3Sn using density functional theory based on the full-potential linearized augmented plane wave (FLAPW) calculation. Our calculation shows that the Perdew–Burke–Ernzerhof (PBE) Generalized-Gradient Approximation (GGA) functional is closer to the experimental structure compared to the von Barth-Hedin Local Density Approximation (LDA)-optimized geometry. The PBE GGA is therefore subsequently used in FLAPW post-calculation for the electrostatic potential calculation to find the local minima position as a guiding strategy for estimating the muon site. Our result reveals at least two muon sites of which one is placed at the center between two Mn-Sn triangular layers (A site) and the other at the trigonal prismatic site of Sn atom (B site). The total energy of Mn3Sn system in the presence of muon at A site or B site are compared and we find that A site is a more favorable site for muon to stop.

scholarly journals Quantification of Uncertainties in Nuclear Density Functional Theory

2015 ◽  
Vol 123 ◽  
pp. 115-118 ◽  
Author(s):  
N. Schunck ◽  
J.D. McDonnell ◽  
D. Higdon ◽  
J. Sarich ◽  
S. Wild
Keyword(s):  
Density Functional Theory ◽  
Density Functional ◽  
Nuclear Density ◽  
Functional Theory ◽  
Nuclear Density Functional Theory

scholarly journals Charge radii of potassium isotopes in the RMF(BCS)* approach

2022 ◽  
Author(s):  
Rong An ◽  
Shisheng Zhang ◽  
Li-Sheng Geng ◽  
Feng-Shou 张丰收 Zhang
Keyword(s):  
Experimental Data ◽  
Density Functional Theory ◽  
Density Functional ◽  
Mean Field ◽  
Field Studies ◽  
Nuclear Density ◽  
Isotopic Chain ◽  
Functional Theory ◽  
Charge Radii ◽  
Nuclear Density Functional Theory

Abstract We apply the recently proposed RMF(BCS)* ansatz to study the charge radii of the potassium isotopic chain up to $^{52}$K. It is shown that the experimental data can be reproduced rather well, qualitatively similar to the Fayans nuclear density functional theory, but with a slightly better description of the odd-even staggerings (OES). Nonetheless, both methods fail for $^{50}$K and to a lesser extent for $^{48,52}$K. It is shown that if these nuclei are deformed with a $\beta_{20}\approx-0.2$, then one can obtain results consistent with experiments for both charge radii and spin-parities. We argue that beyond mean field studies are needed to properly describe the charge radii of these three nuclei, particularly for $^{50}$K.

Sign in / Sign up

Export Citation Format

Share Document