Quantum ghost imaging works using only sunlight in stunning new experiment

Scientists have achieved something that once sounded almost impossible: using ordinary sunlight to create quantum-linked photon pairs, a phenomenon normally dependent on precise laboratory lasers. By building a sun-tracking system that funnels sunlight through optical fiber into a special crystal, researchers generated strongly correlated photons capable of performing ghost imaging, where images are reconstructed indirectly through quantum correlations. Remarkably, the sunlight-powered setup pro...