Nonunitary evolution of the dressed states coupled with a continuum: possible optical verification of the true non-Hermitian Hamiltonian

摘要

The general Fano-Friedrichs Hamiltonian is diagonalized via a proper extraction of all dressed decaying eigenquasistates with complex eigenquasienergies. Their non-adiabatic crossing is described using the true truncated non-Hermitian Hamiltonian with applications to DC $PLU AC non-steady Stark effect.