New theory reveals the shape of a single photon Date: November 19, 2024 Source: University of Birmingham Summary: A new theory, that explains how light and matter interact at the quantum level has ...

Photon 'time bins' and signal stability show promise for practical quantum communication via fiber optics. by Lavinia Meier-Ewert, Leibniz Institute of Photonic Technology ...

A quantum key distribution system using a true single-photon source (SPS) achieves a secure key rate 79% higher than the practical limit of weak coherent pulse (WCP) systems, reaching 1.08 × 10 ...

Using a groundbreaking new technique, researchers have unveiled the first detailed image of a photon — a single particle of light — ever taken.

The first direct visualization of the shape of a photon has been created. These particles of light are impossible to photograph, but UK physicists have now calculated their wave function to ...

As true single-photon sources (SPS) are difficult to produce, most QKD systems developed to date rely on attenuated light sources that mimic single photons, such as low-intensity laser pulses.