Breakthrough: Quantum entanglement generated using sunlight instead of lasers

Researchers at the University of Ottawa have shown that quantum entanglement can be generated using sunlight instead of energy-intensive lasers, a major shift from what scientists previously believed. By carefully designing their experiment to isolate polarization, the team achieved 94% entanglement quality using sunlight focused through a specialized lens. This breakthrough could enable satellites to generate secure encryption keys using abundant sunlight, reducing hardware demands and energy costs in future quantum technologies.