Preprint
Sep 2026
Persistent State Method for Resonances on Classical and Quantum Computers
We introduce a new method for extracting resonance pole positions that does not require non-Hermitian extensions of a Hamiltonian. The complex resonance poles are extracted from unitary time evolution of a persistent state, a compact trial state chosen such that its survival amplitude is governed by a single exponentia...
Cong Wang, Lukas Bovermann, Evgeny Epelbaum et al.
· 0 citations