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Density matrix renormalization group and wave function factorization for nuclei
T. Papenbrock, D. J. Dean
We employ the density matrix renormalization group (DMRG) and the wave function factorization method for the numerical solution of large scale nuclear structure problems. The DMRG…
Nuclear Structure Calculations with Coupled Cluster Methods from Quantum Chemistry
D. J. Dean J. R. Gour, G. Hagen, M. Hjorth-Jensen +4
We present several coupled-cluster calculations of ground and excited states of 4He and 16O employing methods from quantum chemistry. A comparison of coupled cluster results with t…
Distribution of spectral widths and preponderance of spin-0 ground states in nuclei
T. Papenbrock, H. A. Weidenmueller
We use a single j-shell model with random two-body interactions to derive closed expressions for the distribution of and the correlations between spectral widths of different spins…
Origin of chaos in the spherical nuclear shell model: role of symmetries
T. Papenbrock, H. A. Weidenmueller
To elucidate the mechanism by which chaos is generated in the shell model, we compare three random-matrix ensembles: the Gaussian orthogonal ensemble, French's two-body embedded en…