Quantum computers: 10-fold boost in stability achieved

(University of New South Wales) Australian engineers have created a new quantum bit which remains in a stable superposition for 10 times longer than previously achieved, dramatically expanding the time during which calculations could be performed in a future silicon quantum computer.The new quantum bit, made up of the spin of a single atom in silicon and merged with an electromagnetic field - known as 'dressed qubit' -- retains quantum information for much longer that an 'undressed' atom.