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Single-atom gating of quantum-state superpositions



Unprecedented control over the superposition of electronic states of a ?quantum coral?, by changing the position of a single atom within it, provides a powerful tool for studying the quantum behaviour of matter.


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Police contact likely convention protesters

July 9: NBC’s Chuck Todd talks about how badly President Bush may have damaged the GOP brand. (Hardball)Minneapolis and St. Paul police hope to quell any disruptions at this summer's Republican National Convention by exchanging cell phone numbers and offering other olive branches to demonstrators.


Japan stocks drop on overnight US losses (AP)

A trader works on the floor of the New York Stock Exchange in New York, Thursday July 24, 2008. Wall Street abruptly ended an earnings-driven rally and closed sharply lower Thursday after a steeper-than-expected decline in existing home sales and worries about the financial sector chilled the market's recent optimism. The major indexes fell about 2 percent, including the Dow Jones industrial average, which lost more than 275 points. (AP Photo/Ed Ou)AP - Japanese stocks fell sharply Friday as Wall Street's overnight plunge renewed lingering concerns about the U.S. economy.


Obama swipes McCain before heading to France (AFP)

US Democratic presidential candidate Barack Obama walks with German Chancellor Angela Merkel in Berlin on July 24. Obama fired back at Republican foe John McCain in a new row over Iraq, as his Europe and Middle East tour took him to France, after a massive campaign event in Berlin.(AFP/Paul J. Richards)AFP - White House hopeful Barack Obama fired back at Republican foe John McCain in a new row over Iraq, as his Europe and Middle East tour Friday took him to France, after a massive campaign event in Berlin.



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