@article{8042,
  abstract     = {We consider systems of N bosons in a box of volume one, interacting through a repulsive two-body potential of the form κN3β−1V(Nβx). For all 0<β<1, and for sufficiently small coupling constant κ>0, we establish the validity of Bogolyubov theory, identifying the ground state energy and the low-lying excitation spectrum up to errors that vanish in the limit of large N.},
  author       = {Boccato, Chiara and Brennecke, Christian and Cenatiempo, Serena and Schlein, Benjamin},
  issn         = {14359855},
  journal      = {Journal of the European Mathematical Society},
  number       = {7},
  pages        = {2331--2403},
  publisher    = {European Mathematical Society},
  title        = {{The excitation spectrum of Bose gases interacting through singular potentials}},
  doi          = {10.4171/JEMS/966},
  volume       = {22},
  year         = {2020},
}