Researchers have designed a new device that can efficiently create multiple frequency-entangled photons, a feat that cannot be achieved with today's optical devices. The new approach could open a path ...

A new paper suggests that we could search for photons created by gravitational waves. A specific physical response turns gravitons from these waves into photons of electromagnetism. Scientists believe ...

Photons are particles of light, or waves, or something like that, right? [Mithuna Yoganathan] explains this conundrum in more detail than you probably got in your high school physics class. While ...