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nucl-th2023★ 2 cited
Calculation of Dynamical Response Functions Using a Bound-state Method
Niels R. Walet, Jagjit Singh, Johannes Kirscher +3
We investigate a method to extract response functions (dynamical polarisabilities) directly from a bound-state approach applied to calculations of perturbation-induced reactions. T…
cond-mat.quant-gas2023
Unitary interaction geometries in few-body systems
Lorenzo Contessi, Johannes Kirscher, Manuel Pavon Valderrama
We consider few-body systems in which only a certain subset of the particle-particle interactions is resonant. We characterize each subset by a {\it unitary graph} in which the ver…