New valve will control the flow of heat in a quantum computer

One of the key objectives of the study was to show how the quantity of

heat in a quantum computer.

To design a heat valve thatwill control the flow of heat, the researchers placed a gold nanoparticle between two metal contacts, using it as a compound. This nanoparticle is so small that it can be used at one energy level to act like a larger artificial atom with multiple energy levels available.

If you configure the external parameters correctly, thenit is possible to make the electrons in one of the contacts pass only through one of the levels of this artificial atom and reach another contact. Thus, a sibling quantum dot acts as a bridge between two metal contacts.

Lo Gullo, one of the researchers

When developing the device, the researchers had toovercome a number of technical challenges. For example, they needed to develop a strategy for locally measuring temperature (and temperature difference) inside a quantum device. As a result, they were able to collect these measurements and thus better understand how heat is regulated inside quantum devices.

In the future, a thermal valve developed by a research team could improve the reliability and safety of quantum devices while reducing the risk of overheating.

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