Browsing by Author "Petrat, Sören"

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    Ground State of Bose Gases Interacting through Singular Potentials
    (Oberwolfach : Mathematisches Forschungsinstitut Oberwolfach, 2023) Boßmann, Lea; Leopold, Nikolai; Petrat, Sören; Rademacher, Simone
    We consider a system of N bosons on the three-dimensional unit torus. The particles interact through repulsive pair interactions of the form N3β−1v(Nβx) for β∈(0,1). We prove the next order correction to Bogoliubov theory for the ground state and the ground state energy.