3 papers
physics.comp-ph2024
The Steepest Slope toward a Quantum Few-body Solution: Gradient Variational Methods for the Quantum Few-body Problem
Paolo Recchia, Debabrota Basu, Mario Gattobigio +2
Quantum few-body systems are deceptively simple. Indeed, with the notable exception of a few special cases, their associated Schrodinger equation cannot be solved analytically for…
nucl-th2023
The Fate of excited state of
Mario Gattobigio, Alejandro Kievsky
We investigate the properties of the excited state of , , within the framework of Efimov physics and its connection to the unitary point of the nucl…
physics.atm-clus2023
Universal tetramer limit-cycle at the unitarity limit
Tobias Frederico, Mario Gattobigio
We demonstrate that a four-boson limit-cycle independent of the Efimov one appears in Hamiltonian systems at the unitary limit. The model interaction contains two-, three- and four…