Researchers at IBM successfully coded an individual atom with a binary value of 0 or 1
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The researchers were able to imbue two Holmium atoms with separate binary values using a magnetised scanning tunnelling microscope. They then connected them to make a miniscule hard drive with four possible combinations.
http://www.telegraph.co.uk/technology/2017/03/09/data-stored-single-atom-first-time/
http://www.msn.com/fr-ca/actualites/science-et-techno/ibm-parvient-%c3%a0-stocker-des-infos-sur-un-atome/ar-AAo4BK9?li=AAgh0dy
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On another topic, the IBM web site presents quantum computing in a cute way. For the nuts
and bolts of it, it's Grover's algorithm:
https://cryptome.org/qc-grover.htm
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