A cornerstone of modern physics is mathematics. Like it or not, without the tools provided to physicists by mathematics, physics would be dead in the water. But (and this is something that all of us ...

Up-conversion: the new scheme converts single photons from a lower frequency to a higher one by scattering them off a moving refractive index grating created by molecular vibrations in an optical ...

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 ...