Scientists from Kyoto University and Hiroshima University have identified a novel method of understanding the long-elusive W state of quantum entanglement, solving a decades-old challenge and opening new avenues to modern-day advances in quantum teleportation and computing. Instead, quantum teleportation refers to the transfer of quantum information between particles (usually photons) by exploiting quantum entanglement. The new method enables the identification of W states in a “one-shot” measurement, eliminating the need for repeated trials. The implications could be profound, as the team’s work may help propel the development of quantum teleportation (the transfer of information without moving physical particles) and accelerate measurement-based quantum computing—both fundamental to future computational processes. Altogether, the breakthrough brings science one step closer to harnessing the full potential of quantum technologies and moves us closer to advancing quantum computing beyond theory and early demonstrations, and into practical reality.