Fig. 4: Superradiance emission as a function of θ.
From: Synthesized magnetic field of a sawtooth superradiance lattice in Bose–Einstein condensates
The laser power of the near-resonant coupling field is fixed at 200 μW and that of the far-detuned one is 10 μW (a1), 20 μW (a2), 40 μW (a3), 60 μW (a4), 80 μW (a5), and 100 μW (a6), respectively. The red and blue colors are the results for the two opposite probe directions. The frequency of the probe light is set at zero detuning. In the numerical simulation, coupling strengths Ωr = 2π × 15 MHz, κ = 2π × (b1) 0.225, (b2) 0.45, (b3) 0.9, (b4) 1.35, (b5) 1.8, (b6) 2.25 MHz, detuning Δc = 2κ, and phase mismatch δk = 0.01kp.
