Speaker
Description
Exceptional points (EPs), where eigenvalues and eigenvectors coalesce, are a hallmark of non-Hermitian systems but remain largely unexplored in quantum chromodynamics (QCD). In this talk, we demonstrate that imaginary magnetic fields provide a simple realization of non-Hermitian dynamics in hadronic systems. Using both a hadronic effective Lagrangian and a constituent quark model, we identify EPs in neutral meson spectra that separate the real-spectrum and complex-eigenvalue regimes. Weak fields induce level attraction, while stronger fields lead to hadron deconfinement through an inverted confining potential. These results establish a new connection between non-Hermitian physics and QCD and provide a framework for studying relativistic bound states in non-Hermitian environments.