"Revolutionary Photonic Time Crystals Formed by Laser Light's Swift Transformations"
Scientists have conducted experiments that provide further evidence of photonic time crystals (PTCs), materials in which the refractive index oscillates rapidly. By using lasers to rapidly change the refractive index in transparent conducting oxides, researchers observed significant shifts in light frequency and relaxation time. While the exact mechanisms behind these phenomena are not yet fully understood, the findings pave the way for observing PTCs at optical frequencies and exploring other time-boundary phenomena.