10 citations · 18 across the 11 of their papers we have counts for
11 papers
Revisiting the Equation-of-Motion Method: A Universal Framework for Correlated Quantum Systems
Andrea Porro
A general implementation of the equation-of-motion (EOM) formalism for correlated many-body states is presented and applied to the description of collective excitations in atomic n…
Nuclear giant resonances from first principles
Sonia Bacca, Francesco Marino, Andrea Porro
This chapter presents an ab initio perspective on giant resonances in atomic nuclei and surveys the principal theoretical frameworks that aim to describe these collective excitatio…
Ab initio calculations of monopole sum rules: From finite nuclei to infinite nuclear matter
Francesca Bonaiti, Andrea Porro, Sonia Bacca +2
We compute moments of the isoscalar monopole response of N = Z closed-shell nuclei based on chiral nucleon-nucleon plus three-nucleon interactions. We employ the random phase appro…
Impact of ground-state correlations on the multipole response of nuclei: Ab initio calculations of moment operators
Andrea Porro, Achim Schwenk, Alexander Tichai
We develop a framework that allows to calculate integrated properties of the nuclear response from first principles. Using the ab initio in-medium similarity renormalization group…
Ab initio description of monopole resonances in light- and medium-mass nuclei: IV. Angular momentum projection and rotation-vibration coupling
Andrea Porro, Thomas Duguet, Jean-Paul Ebran +3
Giant Resonances are, with nuclear rotations, the most evident expression of collectivity in finite nuclei. These two categories of excitations, however, are traditionally describe…
Ab initio description of monopole resonances in light- and medium-mass nuclei: III. Moments evaluation in ab initio PGCM calculations
Andrea Porro, Thomas Duguet, Jean-Paul Ebran +3
The paper is the third of a series dedicated to the ab initio description of monopole giant resonances in mid-mass closed- and open-shell nuclei via the so-called projected generat…
Ab initio description of monopole resonances in light- and medium-mass nuclei: II. Ab initio PGCM calculations in Ti, Si and Mg
Andrea Porro, Thomas Duguet, Jean-Paul Ebran +3
Giant resonances (GRs) are a striking manifestation of collective motions in atomic nuclei. The present paper is the second in a series of four dedicated to the use of the projecte…
Ab initio description of monopole resonances in light- and medium-mass nuclei: I. Technical aspects and uncertainties of ab initio PGCM calculations
Andrea Porro, Thomas Duguet, Jean-Paul Ebran +3
Giant resonances (GRs) are a striking manifestation of collective motions in mesoscopic systems such as atomic nuclei. Until recently, theoretical investigations have essentially r…
Symmetry-restored Skyrme-Random-Phase-Approximation calculations of the monopole strength in deformed nuclei
A. Porro, G. Colò, T. Duguet +2
Within the Energy Density Functional (EDF) approach, the use of mean-field wave-functions deliberately breaking (some) symmetries of the underlying Hamiltonian is an efficient and…
On the off-diagonal Wick's theorem and Onishi formula
Andrea Porro, Thomas Duguet
The projected generator coordinate method based on the configuration mixing of non-orthogonal Bogoliubov product states, along with more advanced methods based on it, require the c…
Importance truncation in non-perturbative many-body techniques
Andrea Porro, Vittorio Somà, Alexander Tichai +1
Expansion many-body methods correspond to solving complex tensor networks. The (iterative) solving of the network and the (repeated) storage of the unknown tensors requires a compu…