Shedding Light on Quantum Computing

Using a compact optical platform that exploits the quantum characteristics of light, Professor Roberto Morandotti and his team are one step closer to realizing the first powerful photonic quantum computer. In the journal Nature Physics, the INRS researchers revealed to have generated a particular class of quantum states-d-level cluster states, as well as to have used them to implement novel quantum operations. The demonstrated states exhibit unique properties that make them more robust and powerful than any other such states demonstrated thus far.

For nearly ten years, Morandotti has been building an ambitious system piece by piece by developing chips that use light particles (photons) as the data medium. On these coin-sized chip structures, photons are generated and transformed so they can be assigned unique quantum properties. His team was the first to successfully create high-dimensional (i.e. quDit) optical cluster states, one of the elements that can enable the ongoing quest to harness the power of quantum computing.

(continue reading)