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For the first time, a quantum engine has outperformed its traditional equivalent, without any special tweaks to its environmen.


The device harnesses the weird physics of very small objects to produce more power than a standard, or classical, engine under the same conditions, scientists report in the March 22 Physical Review Letters.  

“They’ve shown very convincingly that the quantum machine performs better than the classical,” says physicist Mark Mitchison of Trinity College Dublin. “It’s a very important step forward.

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