Photonics

Ion trap for quantum computing | Credit: NQIT/Stuart Bebb
Ion trap for quantum computing
Photonics is another way of saying “optical wiring” and in NQIT we are developing the optics to wire-up individual atoms, by collecting photons, particles of light, which they emit and using measurements to build a quantum connection between the atoms, known as entanglement.

In parallel, we are also developing devices to enable quantum technologies based on light: for example, a quantum random number generator, and a light source that emits precisely one photon on-demand. We also recently demonstrated a new kind of quantum memory, which can store the quantum information carried by photons as a magnetic wave in a gas of atoms. The next generation of this device will make it possible to synchronise the signals in very large quantum networks, enabling a quantum internet for secure communications and new kinds of sensors.