An array of entangled particles doesn't have a physical appearance in the conventional sense. Entanglement is a phenomenon in quantum mechanics where two or more particles become correlated in such a way that the state of one particle cannot be described independently of the others. When particles are entangled, their properties become intertwined, and measuring one particle instantaneously affects the state of the other, regardless of the distance between them.
The entangled particles themselves would not have any observable visual characteristics that distinguish them from non-entangled particles. They would appear like any other particles. However, their behavior would exhibit correlations that are not possible with classical particles.
To study entangled particles, scientists typically perform experiments involving measurements on the entangled particles and analyzing the statistical correlations between the results. The entangled particles may be created and manipulated in various physical systems such as atoms, ions, photons, or superconducting circuits.
While an array of entangled particles may not have a distinct visual appearance, the concept of entanglement is a fundamental and fascinating aspect of quantum mechanics that has profound implications for our understanding of the nature of reality at the microscopic level.