2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/190706We find self-adjoint extensions of the rational Calogero model in presence of the harmonic interaction. The corresponding eigenfunctions may describe the near-horizon quantum states of certain types of black holes.3 pages, talk given at PASCOS03, TIFR, MumbaiHigh Energy Physics - Theorytext