3 papers
nucl-th2026
Time-ordered Diagrammatic Monte Carlo for atomic nuclei
Stefano Brolli, Carlo Barbieri
Diagrammatic Monte Carlo provides a systematically improvable framework for stochastically resumming many-body expansions to high orders through direct sampling of diagram topologi…
nucl-th2025
Diagrammatic Monte Carlo for Finite Systems at Zero Temperature
Stefano Brolli, Carlo Barbieri, Enrico Vigezzi
High-order virtual excitations play an important role in microscopic models of nuclear reactions at intermediate energies. However, the factorial growth of their complexity has pre…
nucl-th2023
Expansion of one-, two- and three-body matrix elements on a generic spherical basis for nuclear ab initio calculations
Alberto Scalesi, Carlo Barbieri, Enrico Vigezzi
Ab initio studies of atomic nuclei are based on Hamiltonians including one-, two- and three-body operators with very complicated structures. Traditionally, matrix elements of such…