Fig. 2: Disappearance and appearance of an EP.
From: Topological phonon blockade and its transfer via dark-mode engineering
a, b Resonance frequencies and (c, d) linewidths of mechanical normal modes versus the laser power P in (a, c) the \({{\mathcal{D}}}{{\mathcal{M}}}{{\mathcal{N}}}\) regime (ξ = 024) and (b, d) the \({{\mathcal{D}}}{{\mathcal{M}}}{{\mathcal{B}}}\) regime (ξ/ωm = 5 × 10−4 and Θ/π = 1/9), when Δ/2π = −847.74 kHz.
