New quantum nanodevice can simultaneously act as a heat engine and a refrigerator

A multitasking nanomachine that can act as a heat engine and a refrigerator at the same time has been created by RIKEN engineers. The device is one of the first to test how quantum effects, which govern the behavior of particles on the smallest scale, might one day be exploited to enhance the performance of nanotechnologies.

source https://phys.org/news/2020-12-quantum-nanodevice-simultaneously-refrigerator.html