2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/105140We study the resonant set of a two-level Schrödinger operator with a linear conical intersection. This model operator can be decomposed into a direct sum of first order systems on the real half-line. For these ordinary differential systems we locally construct exact WKB solutions, which are connected to global solutions, amongst which are resonant states. The main results are a generalized Bohr-Sommerfeld quantization condition and an asymptotic description of the set of resonances as a distorted lattice.45 pages 4 figuresAnalysis of PDEsSpectral Theory33P99text