One of the key goals of the study was to show how quantity can be managed
To design a heat valve that would control heat flows, the researchers placed a gold nanoparticle between two metal contacts, using it as a joint.This nanoparticle is so small that it can be used at a single energy level to act as a larger artificial atom with multiple available energy levels.
If the external parameters are adjusted correctly, it is possible to make it so that the electrons in one of the contacts pass only through one of the levels of this artificial atom and reach the other contact.In this way, a single-level quantum dot acts as a bridge between two metal contacts.
Lo Gullo, one of the researchers
For example, they needed to develop a strategy to measure the temperature (and temperature difference) inside a quantum device locally.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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