European research has successfully grown a pure crystal of diamond which possesses all the properties required to control and read data in a quantum machine. Diamond has been identified as a promising candidate for solid-state quantum computing; unlike other approaches which generally require complex and expensive cooling systems, diamond can operate at room temperature.
Diamond-based quantum computers use electrons to store data bits, and photons (individual packets of light) to read and control the data bits. One of the most exciting properties of these quantum-grade diamonds developed under Equind is their long ‘coherence time’ – the length that single electron spins remain in phase.
It is important that electrons retain their quantum information (direction of spin) long enough to make computational calculations. The diamond crystals developed by Equind diphase after about 1.8 ms, the longest-ever observed in a solid-state system at room temperature!