January 19, 2010
Turning Down The Noise In Quantum Data Storage
A roundabout method of reading data can improve quantum memory
Researchers who hope to create quantum computers are currently investigating various methods to store data. Nitrogen atoms embedded in diamond show promise for encoding quantum bits (qubits), but the process of reading the information results in an extremely weak signal. Now physicists have demonstrated a roundabout approach for generating a significantly stronger signal from these sorts of qubits. Their experiment is reported in the current issue of Physical Review B and highlighted with a Viewpoint in the January 19 issue of Physics (http://physics.aps.org.)
The resulting signal is still weak, but by combining other clever methods to the problem researchers might one day be able to use impurities in diamond to read and write quantum information at room temperature"”which would bring us much closer to creating practical quantum computers.
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