Figure 3
From: Digital Quantum Rabi and Dicke Models in Superconducting Circuits
Time evolution of the fidelity F = |〈ΨS|ΨR〉|2 of state |ΨS〉 evolving according to the digitized protocol, to the ideal state |ΨR〉 evolving according to the quantum Rabi dynamics, with a) 
, b) 
, c) 
and d) 
.
The simulation is performed for different number n of Trotter steps. Black curves in the insets show the overlap of the ideal evolved state with the one at time t = 0, |〈ΨR|Ψ0〉|2, initialized with a fully excited qubit and the resonator in the vacuum state.
