Eric R. Bittner

Graph symmetry organizes exceptional dynamics in open quantum systems

Exceptional points (EPs) play a central role in non-Hermitian physics, yet most theoretical studies begin from deliberately engineered low-dimensional effective Hamiltonians whose parameters are tuned to produce spectral degeneracies. In realistic open quantum systems, however, d...

Thermalization regimes in a chaotic Tavis-Cummings model

This work investigates the emergent thermalization regimes in a chaotic Tavis–Cummings (TC) model and their implications in quantum spectroscopy. While the TC model is a cornerstone of cavity quantum electrodynamics, traditional treatments often overlook many-body effects that ar...