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Singular Value Decomposition and Similarity Renormalization Group Evolution of Nuclear Interactions
B. Zhu, R. Wirth, H. Hergert
One of the main challenges for ab initio nuclear many-body theory is the growth of computational and storage costs as calculations are extended to heavy, exotic, and structurally c…
Ab initio benchmarks of neutrinoless double beta decay in light nuclei with a chiral Hamiltonian
J. M. Yao, A. Belley, R. Wirth +5
We report ab initio benchmark calculations of nuclear matrix elements (NMEs) for neutrinoless double-beta () decays in light nuclei with mass number ranging from to $A=…
Symmetry reduction of tensor networks in many-body theory I. Automated symbolic evaluation of algebra
Alexander Tichai, Roland Wirth, Julien Ripoche +1
The ongoing progress in (nuclear) many-body theory is accompanied by an ever-rising increase in complexity of the underlying formalisms used to solve the stationary Schrödinger equ…
Ab Initio Treatment of Collective Correlations and the Neutrinoless Double Beta Decay of Ca
J. M. Yao, B. Bally, J. Engel +3
Working with Hamiltonians from chiral effective field theory, we develop a novel framework for describing arbitrary deformed medium-mass nuclei by combining the in-medium similarit…
Similarity renormalization group evolution of hypernuclear Hamiltonians
Roland Wirth, Robert Roth
Unitary transformations of a Hamiltonian generally induce interaction terms beyond the particle rank present in the untransformed Hamiltonian that have to be captured and included…