It ’s completely counterintuitive , but scientists at the Niels Bohr Institute have succeeded in cool down a semiconductor tissue layer to −452.2 ° F , almost seven degrees above sheer zero , using a potent laserwe usually think of as only being able-bodied to burn up .
With a heaviness of just 160 millimicron and a surface expanse of 1 millimeter second power , the semiconductor unit membrane is implausibly small by most standards . But compare to premature laser cooling experiments which have been carry on on clouds of mote , it ’s downright gigantic . And it ’s pen of a textile called gallium arsenide which has a unique crystallization structure give it particular electronic and opthalmic property .
Now how exactly the scientist were able to cool it to near sheer zero by shoot it with a optical maser is a bit on the complicated side . But the gist of the experiment involves bound the optical maser light between the tissue layer and a mirror , and as some of the light is absorbed by the tissue layer it expands and contracts . But by constantly adjust and controlling this expansion and condensation , which essentially cause the tissue layer to oscillate , the material can in reality be radically cooled .
So besides producing alengthy research paper , why is this important ? Well at some point quantum figurer are go to overturn computing as we know it , but they can be very finical savage . Extra particles whirr about inside can stymie their calculations , so chill components to near absolute zero , where there ’s no mote motion , will help to make an surroundings where a quantum reckoner can work more accurately . Also , how nerveless would a laser - powered fridge be ? [ Niels Bohr InstituteviaGizmag ]
LASERSquantum computersScience
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