Scientists have observed a quantum state of matter in which light behaves simultaneously like a solid crystal and a frictionless liquid, according to research published this week. The phenomenon, known as a supersolid-like phase of light, exhibits a rigid, lattice-like structure while flowing without resistance, and was achieved at room temperature. Previous observations of comparable quantum states required temperatures approaching absolute zero, a constraint that has long confined such experiments to highly specialized cryogenic laboratories and limited their practical application.
The findings overturn a major practical limitation of exotic quantum research and could accelerate development of light-based computing and sensing technologies. Researchers say the ability to sustain this dual solid-liquid behavior under ambient conditions may enable more stable optical circuits, precision interferometry and novel approaches to information processing using photons rather than electrons. Independent scientists cautioned that engineering challenges remain before commercial devices emerge, but described the result as a significant step toward usable quantum photonic systems. Further studies are expected to examine scalability and how the state responds to external fields.
Independent reporting synthesized from primary wires and global correspondents.