Out-of-time-order correlator in the quantum Rabi model
Authors: Kirkova, Aleksandrina, V; Porras, Diego; Ivanov, Peter A. Journal: PHYSICAL REVIEW A Publication date: 2022/03/25 DOI: 10.1103/PhysRevA.105.032444 Abstract: We investigate signatures of chaos and equilibration in the quantum Rabi model, which exhibits a quantum phase transition when the ratio of the atomic level-splitting to bosonic frequency grows to infinity. We show that the out-of-time-order [...]