Extended Data Fig. 6: The influence of loss on the topological WG insulator.

a–c, Spectrally resolved amplification factors through simulations considering the inherent loss with three different gain-phase textures: ϕ = 0 (a), ϕ = π (b) and ϕ = 2π (c). d–f, Pressure-field distributions and their chiralities of the three resonances at three different gain-phase textures corresponding to the frequencies f− = 8,889 Hz (d), f0 = 8,999 Hz (e) and f+ = 9,103 Hz (f).