Momentum-dependent quantum Ruelle-Pollicott resonances in translationally invariant many-body systems
Momentum-dependent quantum Ruelle-Pollicott resonances in translationally invariant many-body systems
We study Ruelle-Pollicott resonances in translationally invariant quantum many-body lattice systems via spectra of a momentum-resolved operator propagator on infinite systems. Momentum dependence gives insight into the decay of correlation functions, showing that, depending on their symmetries, different correlation functions in general decay with different rates. Focusing on the kicked …