192 citations · 1.2k across the 11 of their papers we have counts for
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Gamow shell-model calculations of drip-line oxygen isotopes
K. Tsukiyama, M. Hjorth-Jensen, G. Hagen
We employ the Gamow shell model (GSM) to describe low-lying states of the oxygen isotopes 24O and 25O. The many-body Schrodinger equation is solved starting from a two-body Hamilto…
Solution of the center-of-mass problem in nuclear structure calculations
G. Hagen, T. Papenbrock, D. J. Dean
The coupled-cluster wave function factorizes to a very good approximation into a product of an intrinsic wave function and a Gaussian for the center-of-mass coordinate. The width o…
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…
Comment on "Ab Initio study of 40-Ca with an importance-truncated no-core shell model"
D. J. Dean, G. Hagen, M. Hjorth-Jensen +2
In a recent Letter [Phys. Rev. Lett. 99, 092501 (2007)], Roth and Navratil present an importance-truncation scheme for the no-core shell model. The authors claim that their truncat…
Benchmark calculations for 3H, 4He, 16O and 40Ca with ab-initio coupled-cluster theory
G. Hagen, D. J. Dean, M. Hjorth-Jensen +2
We present ab-initio calculations for 3H, 4He, 16O, and 40Ca based on two-nucleon low-momentum interactions Vlowk within coupled-cluster theory. For 3H and 4He, our results are wit…
Coupled-cluster theory for three-body Hamiltonians
G. Hagen, T. Papenbrock, D. J. Dean +4
We derive coupled-cluster equations for three-body Hamiltonians. The equations for the one- and two-body cluster amplitudes are presented in a factorized form that leads to an effi…