(PhysOrg.com) -- Cornell researchers have demonstrated that the passage of a light beam through an optical fiber can be controlled by just a few photons of another light beam.

Continuous variable quantum information technology can provide an equivalent ... In their case, the entanglement was between the amplitude (e.g., number of photons), and phase of two beams of light.

Researchers have measured the brain’s faint glow for the first time, hinting at a potential role of “biophotons” in cognition ...

What physicists refer to as photons, other people might just call light. As quanta of light, photons are the smallest possible packets of electromagnetic energy. If you are reading this article on a ...

The controlled production of single photons is of fundamental and practical interest; they represent the lowest excited quantum states of the radiation field, and have applications in quantum ...

Photons are what allow us to see, ... The problem is that there’s essentially infinite possibilities for how the nanoparticle can interact with a continuous spectrum of light.

Light propagating through the environment has limitless possibilities for interaction. The team took this continuous range of possibilities and simplified it by creating a discrete set.

This light is in the very near infrared compared to human vision. Using a specially designed 2-mm long nonlinear crystal of potassium titanyl phosphate (KTP), they produced a collinear photon pair ...

Typically, the momentum of photons creates a pushing force, driving particles forward. This concept was first predicted over 400 years ago by Johannes Kepler, who proposed the idea of a "solar ...

While dark photons aren’t usually suggested as a candidate for dark matter itself, they could be force carriers just like "ordinary" photons are. More specifically, these particles of light ...

A new method could help scientists shed light on the universe’s most mysterious substance by narrowing down the hunt for a particular dark matter candidate — hidden "dark photons." Dark matter ...