An international study has revealed a surprising connection between quantum physics and the theoretical models underlying ...

The collaboration of TU Wien with research groups in China has resulted in a crucial building block for a new kind of quantum ...

A pair of photons enters an optical maze, and sometimes they leave as something new. Not new in the everyday sense, since both were still photons when they came out. But new in the way they share ...

Two physicists at the University of Konstanz are developing a method that could enable the stable exchange of information in quantum computers. In the leading role: photons that make quantum bits "fly ...

Physicists at the Max Planck Institute have developed an efficient new method to drive the quantum entanglement of photons, and demonstrated it by entangling a record number of photons. The technique ...

Research reveals how close human vision comes to sensing the smallest possible unit of light. Here’s why that matters for perception.

I have completely lost count of how many times I have read phrases like, “Consider a light source that emits photon pairs that are indistinguishable.” This indistinguishability, along with the ability ...

"When a particle moves through spacetime, how do we know it is the same particle and not some excitation that is passed from place to place?" We don’t! This is a really interesting feature of our ...

“Molecules” made from three photons have been created by physicists in the US. The photon triplets were made by firing laser light into an atomic gas and the researchers believe that their technique ...

Using photonic chips to control single photons in waveguides is a promising route to technologies based on the photons'quantum properties. The ability to measure entanglement on such chips is a key ...