New technique can capture images of ultrafast energy-time entangled photon pairs
University Of Waterloo
In the last 10 to 20 years, researchers have been interested in exploring and exploiting energy-time entanglement for communication, said MacLean. By being able to measure ultrafast entangled photons, our measurement technique opens the door to exploiting entanglement in a whole new regime. Energy-time entanglement is a feature of quantum light. Scientists have been interested in exploiting energy-time entanglement for quantum information, but until now, they lacked the resolution in both energy and time to directly observe it. The new apparatus brings a tool frequently relied upon in classical optics research to the quantum world.