176 citations · 561 across the 13 of their papers we have counts for
13 papers
Modewise Johnson-Lindenstrauss Embeddings for Nuclear Many-Body Theory
A. Zare, R. Wirth, C. A. Haselby +2
In this work, we explore modewise Johnson-Lindenstrauss embeddings (JLEs) as a tool to reduce the computational cost and memory requirements of nuclear many-body methods. JLEs are…
Ab initio studies of double Gamow-Teller transition and its correlation with neutrinoless double beta decay
J. M. Yao, I. Ginnett, A. Belley +7
We use chiral interactions and several {\em ab initio} methods to compute the nuclear matrix elements (NMEs) for ground-state to ground-state double Gamow-Teller transitions in a r…
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 calculation of the contact operator contribution in the standard mechanism for neutrinoless double beta decay
R. Wirth, J. M. Yao, H. Hergert
Starting from chiral nuclear interactions, we evaluate the contribution of the leading-order contact transition operator to the nuclear matrix element (NME) of neutrinoless double-…
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…
Hypernuclear No-Core Shell Model
Roland Wirth, Daniel Gazda, Petr Navrátil +1
We extend the No-Core Shell Model (NCSM) methodology to incorporate strangeness degrees of freedom and apply it to single- hypernuclei. After discussing the transformation of th…
Light Neutron-Rich Hypernuclei from the Importance-Truncated No-Core Shell Model
Roland Wirth, Robert Roth
We explore the systematics of ground-state and excitation energies in singly-strange hypernuclei throughout the helium and lithium isotopic chains --- from He to He…
Induced Hyperon-Nucleon-Nucleon Interactions and the Hyperon Puzzle
Roland Wirth, Robert Roth
We present the first ab initio calculations for -shell hypernuclei including hyperon-nucleon-nucleon (YNN) contributions induced by a Similarity Renormalization Group transforma…
Ab Initio Description of p-Shell Hypernuclei
Roland Wirth, Daniel Gazda, Petr Navrátil +3
We present the first ab initio calculations for p-shell single-Lambda hypernuclei. For the solution of the many-baryon problem, we develop two variants of the no-core shell model w…
No-Core Shell Model for Nuclear Systems with Strangeness
D. Gazda, J. Mareš, P. Navrátil +2
We report on a novel ab initio approach for nuclear few- and many-body systems with strangeness. Recently, we developed a relevant no-core shell model technique which we successful…