Technology

Heat Energy Transport Cools Chips

In a striking breakthrough in physics, researchers at the Aalto University in Finland managed to carry the heat with maximum efficiency at a distance 10000 times greater than had previously been achieved.This means that the heat dissipation apparatus can be distant from the place where the heat is generated heat sink and the fan can stay away from the processor.

Heat Energy Transport Cools Chips
Artistic illustration of heat quanticamente limited transported over long distances using microwave photons. Photo: Rajat Heikka

In addition technique allow the use of base metal along with superconductors, all on the same chip, which give a new impetus to building quantum processors, in which heat is synonymous with “noise” that makes the qubits to lose data.

And many other applications are possible.

“The long distance achieved by our experiments can, for example, lead to the construction of heat microscopic engines efficiently, with promising practical applications, “said professor Mikko Mottonen, whose team had already taken advantage of special cooling techniques to create quantum nodes.

Heat transmission distance

In experiments, the heat was transmitted efficiently at a distance of up to 1 meter, a lot for all quantum applications and far enough to allow applications in the Macroscale.

“For computer processors, a meter is an extremely long distance. No one thinks of build a processor so big, “Mottonen said.

What is innovative in the paper is to use photons particles of light transfer heat. Nothing exactly radical, as are photons that bring the warmth of the Sun to the Earth, but until today, the technology vineyard using electrons.

“We did this improvement of four orders of magnitude in distance using microwave photons traveling in superconducting transmission lines. So it seems that the heat conduction quantifiable limited has no maximum distances. This paper establishes the integration of normal metal components in the framework of quantum electrodynamics, which is at the basis of superconducting quantum computer.