Many-body excitation spectra of trapped bosons with general interaction by linear response
Many-body excitation spectra of trapped bosons with general interaction by linear response
The linear-response theory of the multiconfigurational time-dependent Hartree for bosons method (LR-MCTDHB) for computing many-body excitations of trapped Bose-Einstein condensates [Phys. Rev. A 88, 023606 (2013); J. Chem. Phys. 140, 034108 (2014)] is implemented, for the first time, for systems with general interparticle interaction. This allows us to investigate the …