scholarly journals No-Core Shell Model for Nuclear Systems with Strangeness

2014 ◽  
Vol 55 (8-10) ◽  
pp. 857-860 ◽  
Author(s):  
D. Gazda ◽  
J. Mareš ◽  
P. Navrátil ◽  
R. Roth ◽  
R. Wirth
2010 ◽  
Vol 25 (21n23) ◽  
pp. 1980-1984
Author(s):  
J. P. DRAAYER ◽  
T. DYTRYCH ◽  
K. D. SVIRATCHEVA

A symmetry-adapted open-core shell model with SU (3) the underpinning symmetry is described. The model reduces to the well established Elliott SU (3) model in its 0ħΩ limit and to the no-core shell model (NCSM) – successful in describing low-energy dynamics of light nuclei – if stripped of its special symmetry considerations. We show that this approach is effective in providing an efficient description of low-lying eigenstates of 12 C and 16 O . A symmetry-guided framework is suggested based on our recent findings of low-spin and high-deformation dominance in realistic NCSM results. This holds promise to significantly enhance the reach of ab initio shell models toward heavier nuclear systems as well as descriptions of collective and cluster phenomena.


2012 ◽  
Vol 387 ◽  
pp. 012016
Author(s):  
T Dytrych ◽  
K D Launey ◽  
J P Draayer ◽  
D Langr

2014 ◽  
Vol 89 (3) ◽  
Author(s):  
G. K. Tobin ◽  
M. C. Ferriss ◽  
K. D. Launey ◽  
T. Dytrych ◽  
J. P. Draayer ◽  
...  

2021 ◽  
Vol 1028 ◽  
pp. 193-198
Author(s):  
Budi Adiperdana ◽  
Nadya Larasati Kartika ◽  
Risdiana

Ising core-shell model was proposed to reconstruct superparamagnetism hysteresis in nano-goethite (α-FeOOH). Core and shell set as antiferromagnetic and paramagnetic state respectively. Core and shell radius varies until the theoretical hysteresis fit with experiment hysteresis. At low temperature, the hysteresis reconstructed nicely with 55% antiferromagnetic core contribution and 45% paramagnetic shell contribution. At high temperature, the core-shell model show unrealistic result compared to the pure paramagnetic state.


2006 ◽  
Vol 73 (6) ◽  
Author(s):  
P. Navrátil ◽  
C. A. Bertulani ◽  
E. Caurier

In this study, the core-shell model is used to calculate the electric polarization for PbTiO3 ferroelectric material, in which, the interaction potential functions among atoms are determined by the fitting method based on the results from the first principle calculation. The investigations obtained show that the remnant polarization increases under tension and decreases under compression. The remnant polarization decreases with increasing the temperature. The phase transition from the ferroelectric phase to the paraelectric phase is determined at 605K and can occur at lower temperatures of 0K, 300K, 400K, 500K if the compression strain are 8%, 6%, 5%, 2%, corresponding. The hysteresis loop shrinks as the temperature increases and degrades into a curve at the temperature of 605K.


Author(s):  
B. R. BARRETT ◽  
P. NAVRÁTIL ◽  
A. NOGGA ◽  
W. E. ORMAND ◽  
I. STETCU ◽  
...  
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