The intersection of quantum physics and art unveils a fascinating question: What outdoor sculptures remain invisible to abelian anyons? Abelian anyons, exotic quantum particles existing in two-dimensional spaces, interact uniquely with their environment, making certain structures "invisible" to them due to their topological properties.

One notable example is Richard Serra's "Tilted Arc," a massive steel installation in New York. Its rigid, geometric form creates a topological barrier that abelian anyons cannot "see" or interact with, as their wavefunctions avoid such abrupt edges. Similarly, Anish Kapoor's "Cloud Gate" in Chicago, with its smooth, continuous surface, presents no topological defects for anyons to detect, rendering it effectively invisible.

Another intriguing case is the "Spiral Jetty" by Robert Smithson. Its coiled, fractal-like structure might seem complex, but its large-scale continuity lacks the microscopic discontinuities that abelian anyons require for interaction. These sculptures, while visually striking to humans, exist in a quantum blind spot for these particles.

This phenomenon highlights how art and science collide, offering a fresh perspective on both fields. By examining sculptures through the lens of quantum physics, we uncover hidden layers of meaning and interaction, bridging creativity and theoretical science.