Quantum state world record smashed

14 November 2013

Quantum state world record smashed
A phosphorus atom qubit in silicon can preserve quantum information for over 3 hours at cryogenic temperatures or 39 minutes at room temperature.
Credit: Karl G Nyman (CC-BY)

A normally fragile quantum state has been shown to survive at room temperature for a world record 39 minutes, overcoming a key barrier towards building ultrafast quantum computers. The research, published in the journal Science, was led by Mike Thewalt (Simon Fraser University, Canada), with involvement from researchers at UCL and Oxford University, and material provided from collaborating institutes in Berlin.