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Abundance of Ground States with Positive Parity
T. Papenbrock, H. A. Weidenmueller
We investigate analytically and numerically a random-matrix model for m fermions occupying l1 single-particle states with positive parity and l2 single-particle states with negativ…
Medium-mass nuclei from chiral nucleon-nucleon interactions
G. Hagen, T. Papenbrock, D. J. Dean +1
We compute the binding energies, radii, and densities for selected medium-mass nuclei within coupled-cluster theory and employ the "bare" chiral nucleon-nucleon interaction at orde…
Energy functional for the three-level Lipkin model
Michael G. Bertolli, Thomas Papenbrock
We compute the energy functional of a three-level Lipkin model via a Legrendre transform and compare exact numerical results with analytical solutions obtained from the random phas…
Bouncing ball orbits and symmetry breaking effects in a three-dimensional chaotic billiard
B. Dietz, B. Moessner, T. Papenbrock +2
We study the classical and quantum mechanics of a three-dimensional stadium billiard. It consists of two quarter cylinders that are rotated with respect to each other by 90 degrees…