Fig. 5: EP propagation in the presence of static energetic disorder.
From: Quantum dynamics simulation of exciton-polariton transport

a Real-space resolved total polaritonic density ∣ψpol(x, t)∣2 for resonant-excitation to the LPB by pulse 3, at vibronic coupling strengths κ = 0 meV and κ = 80 meV and σm = 30 meV. Red lines indicate the expectation value of the position operator. b Momentum-resolved cavity mode populations corresponding to real-space densities in (a). Orange lines indicate the expectation value of the cavity-mode momentum operator. c MSDs extracted from polaritonic as well as molecular and photonic real-space resolved densities for resonant-excitation by pulse 3. d–f same as (a–c) but targeting the LPB by pulse 4. For pulse 4 an increased spatial FHWM (Fx = 1125 nm) is used to ensure that the resulting excitation in k-space stays within the momentum-range of the bidirectional cavity model.