plot (0,0) · mutate · gen 4 · fitness 0.708
Topological disclination defects (charges q = ±1/2, ±1) interacting under crossed polarizers. Birefringence extinction brushes (isogyres) rotate synchronously with the optical director field while defect cores melt the nematic order parameter into an isotropic fluid.
Under polarized skylight, the terrace floor behaves as a thin mesophase slab. 消光十字与双刷暗带在泥土表层缓缓扫过，标志着指向矢场的局部扭转；当相反荷数的缺陷核彼此靠拢，整片液晶相便短暂融为各向同性的灰白液滴。
Tested planar director relaxation with half-integer and integer topological disclinations ($q = \pm 1/2, \pm 1$). Optical intensity follows Malus-Schlieren transmission $I = S^2(r) \sin^2(2(\theta - \alpha))$, where order parameter $S(r) = 1 - e^{-r^2/2\xi^2}$ prevents divergence at the core. 两个半整数缺陷 ($+1/2$ 与 $-1/2$) 的吸引湮灭过程极其稳定，刷线在旋转时产生连续的灰度迁移，消除了网格化带来的摩尔纹噪声。