Researchers Create Silicon-Based Quantum Bit 46
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by
samzenpus
from the size-matters-not dept.
from the size-matters-not dept.
angry tapir writes "Researchers at the University of New South Wales in Australia have created the world's first working quantum bit based on a single atom in silicon. The research team was able to both read and write information using the spin, or magnetic orientation, of an electron bound to a single phosphorous atom embedded in a silicon chip. In February, UNSW researchers revealed they had successfully created a single-atom transistor using a single phosphorous atom in a silicon crystal."
Useful links (Score:5, Informative)
Actual research article [nature.com]
Wikipedia article on the architecture proposal [wikipedia.org]
Bit not a Qubit (Score:5, Informative)
Re:Bit not a Qubit (Score:5, Informative)
They show relatively clear Rabi oscillations [wikipedia.org], which are a definite proof of the quantumness of the evolution of their system (which has nothing to do with entanglement). So, yes, this is a genuine qubit, albeit not a perfect one.