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Title: Correlations in Nuclei: Configuration Interaction, Coupled-Cluster and Beyond

Abstract

Many-body correlations play a central role in the structure of nuclei. The mean-field methods, such as Skyrme Hartree-Fock and its extensions to Energy Density Functionals, induce correlations dynamically at the functional level, leaving the explicit wave functions uncorrelated. The Configuration Interaction (CI) method treats the many-body correlations exactly, but in a small configurations space. It is therefore desirable to include as many correlations as possible in larger model spaces. In this contribution I compare the results of Coupled Cluster techniques and of extrapolations methods, such as the Exponential Convergence Method, with the full CI results for nuclei around 56Ni.

Authors:
 [1]
  1. Department of Physics, Central Michigan University, Mount Pleasant, Michigan 48859 (United States)
Publication Date:
OSTI Identifier:
21052877
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 972; Journal Issue: 1; Conference: Carpathian summer school of physics 2007 on exotic nuclei and nuclear/particle astrophysics (II), Sinaia (Romania), 21-31 Aug 2007; Other Information: DOI: 10.1063/1.2870367; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; COMPARATIVE EVALUATIONS; CONFIGURATION INTERACTION; CORRELATIONS; DOUBLE BETA DECAY; ENERGY DENSITY; EXTRAPOLATION; FUNCTIONALS; HARTREE-FOCK METHOD; MANY-BODY PROBLEM; MEAN-FIELD THEORY; NICKEL 56; SHELL MODELS; SKYRME POTENTIAL; WAVE FUNCTIONS

Citation Formats

Horoi, Mihai. Correlations in Nuclei: Configuration Interaction, Coupled-Cluster and Beyond. United States: N. p., 2008. Web. doi:10.1063/1.2870367.
Horoi, Mihai. Correlations in Nuclei: Configuration Interaction, Coupled-Cluster and Beyond. United States. https://doi.org/10.1063/1.2870367
Horoi, Mihai. 2008. "Correlations in Nuclei: Configuration Interaction, Coupled-Cluster and Beyond". United States. https://doi.org/10.1063/1.2870367.
@article{osti_21052877,
title = {Correlations in Nuclei: Configuration Interaction, Coupled-Cluster and Beyond},
author = {Horoi, Mihai},
abstractNote = {Many-body correlations play a central role in the structure of nuclei. The mean-field methods, such as Skyrme Hartree-Fock and its extensions to Energy Density Functionals, induce correlations dynamically at the functional level, leaving the explicit wave functions uncorrelated. The Configuration Interaction (CI) method treats the many-body correlations exactly, but in a small configurations space. It is therefore desirable to include as many correlations as possible in larger model spaces. In this contribution I compare the results of Coupled Cluster techniques and of extrapolations methods, such as the Exponential Convergence Method, with the full CI results for nuclei around 56Ni.},
doi = {10.1063/1.2870367},
url = {https://www.osti.gov/biblio/21052877}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 972,
place = {United States},
year = {Thu Jan 24 00:00:00 EST 2008},
month = {Thu Jan 24 00:00:00 EST 2008}
}