A research group at Aalto University, Finland, has discovered a way to efficiently cool down quantum processors without disturbing computer operations.
According to Phys.org, the scientists, led by quantum physicist Mikko Möttönen, transported heat faster than has ever been done with electrons, the usual choice of heat carrier, by using photons instead.
“In the QCD Labs in Finland, Möttönen’s research group succeeded in measuring quantum-limited heat transport over distances up to a meter,” reported Phys.org, which is a giant leap when previously scientists were able to “measure such heat transport only up to distances comparable to the thickness of a human hair.”
Phys.org explained that “the team came up with the idea to use a transmission line with no electrical resistance to transport the photons. This superconducting line was built on a silicon chip with the size of a square centimeter. Tiny resistors were placed at the ends of the transmission line. The research results were obtained by measuring induced changes in the temperatures of these resistors.”
The research was published on February 1st, 2016 in Nature Physics.
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