--- res: bibo_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.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Chiara foaf_name: Boccato, Chiara foaf_surname: Boccato foaf_workInfoHomepage: http://www.librecat.org/personId=342E7E22-F248-11E8-B48F-1D18A9856A87 - foaf_Person: foaf_givenName: Christian foaf_name: Brennecke, Christian foaf_surname: Brennecke - foaf_Person: foaf_givenName: Serena foaf_name: Cenatiempo, Serena foaf_surname: Cenatiempo - foaf_Person: foaf_givenName: Benjamin foaf_name: Schlein, Benjamin foaf_surname: Schlein bibo_doi: 10.4171/JEMS/966 bibo_issue: '7' bibo_volume: 22 dct_date: 2020^xs_gYear dct_identifier: - UT:000548174700006 dct_isPartOf: - http://id.crossref.org/issn/14359855 dct_language: eng dct_publisher: European Mathematical Society@ dct_title: The excitation spectrum of Bose gases interacting through singular potentials@ ...