Line Plot from Scientific Research

Measurement of dispersive Bloch oscillations and their stabilization. The left-hand column presents the functions and monitors of the emulator. On the right-hand side, we show the time-resolved dynamics in the active synthetic lattice for modulation detuning Δ below or above the critical value Δ c . In both cases, we initialized the system in a single synthetic lattice site. At time t 0 = 150 ns, we quenched the state to a coupled and biased lattice with complex dispersion. Throughout the experiments, the fast gain nonlinearity forces the reciprocal space of the synthetic lattice to be full (quasi-constant intensity), leading to coherent dynamics. For modulated Δf = 1.22 MHz < Δ c (top), the spectrum expanded ballistically, performed a damped oscillation and stabilized on a broad coherent spectrum. When Δf = 3.02 MHz > Δ c (bottom), we observed oscillations with periodicity near T osc = 2π/ Δ , unlike the corrupted dynamics expected from systems with complex dispersion (cf. b ). norm, normalized.

DOI