Fig. 3: Dependence of sideband oscillations width (SOW) on the time delay.
From: Theoretical and experimental characterization of non-Markovian anti-parity-time systems
Eigenvalue analysis predicts SOW ∝ 1/τ with κ-independent prefactor of π for Lτ (gray solid curve) and π/2 for \({L}_{\exp }\) (gray dot-dashed curve). SOWs extracted from steady-state intensity sidebands obtained from the full LK simulations quantitatively match the eigenvalue predictions; error bars, obtained from FWHM of the Fourier transform, are smaller than symbols when not shown. κ-independence of the prefactor in full LK simulations is clear (squares: κ = 2 GHz; circles: κ = 0.4 GHz). SOW(τ), obtained from experimental data for κ that varies by a factor of six, clearly show a 1/τ behavior. Vertical error bars are FWHM of the sideband Fourier transform; horizontal error bars in time-delay estimate are from a fixed uncertainty Δl = 1 cm in the optical path length.
