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18 papers · 2 filters
Coupled cluster calculations of ground and excited states of nuclei
K. Kowalski, D. J. Dean, M. Hjorth-Jensen +2
The standard and renormalized coupled cluster methods with singles, doubles, and noniterative triples and their generalizations to excited states, based on the equation of motion c…
Giant Resonances from TDHF
P. D. Stevenson, M. R. Strayer, J. Rikovska Stone +1
A method of calculating giant resonance strength functions using Time-Dependent Hartree-Fock techniques is described. An application to isoscalar giant monopole resonances in spher…
Local Density Approximation for proton-neutron pairing correlations. I. Formalism
E. Perlinska, S. G. Rohozinski, J. Dobaczewski +1
In the present study we generalize the self-consistent Hartree-Fock-Bogoliubov (HFB) theory formulated in the coordinate space to the case which incorporates an arbitrary mixing be…
Pairing correlations and transitions in nuclear systems
A. Belic, D. J. Dean, M. Hjorth-Jensen
We discuss several pairing-related phenomena in nuclear systems, ranging from superfluidity in neutron stars to the gradual breaking of pairs in finite nuclei. We describe recent e…
Coupled cluster approach to nuclear physics
D. J. Dean, M. Hjorth-Jensen
Using many-body perturbation theory and coupled-cluster theory, we calculate the ground-state energy of He-4 and O-16. We perform these calculations using a no-core G-matrix intera…
Solution of large scale nuclear structure problems by wave function factorization
T. Papenbrock, A. Juodagalvis, D. J. Dean
Low-lying shell model states may be approximated accurately by a sum over products of proton and neutron states. The optimal factors are determined by a variational principle and r…