Quantum effects on current-driven nanodevices.

BUSTOS MARÚN, RAÚL A.

Santiago de Chile

Conferencia; Conference and Advanced School on Low-Dimensional Quantum Systems.; 2023

ICTP, Universidad de Chile y Universidad Técnica Federico Santa María.

Nanoelectromechanical devices and molecular machines are topics that have attracted much attention in recent years. The working principle of most of the studied systems relies on classical physics. However, for some devices, the quantum coherence length may be comparable to some of the system's dimensions, which could lead to new effects or even new working mechanisms.Here, we briefly review some of the recent works of our group about different nanodevices where quantum mechanics plays a central role. This includes different forms of quantum pumps and motors driven by voltage and temperature biases between the reservoirs that are connected to them. We aboard different nanodevices that only work in a quantum regime of the driving particles that flow between the reservoirs, discussing the true role of quantum mechanics in its driving mechanism and the effect of decoherence on them. We also deal with some thermodynamic aspects of such systems including the possibility of using out-of-equilibrium reservoirs. Finally, we tackle the possibility that current-induced forces (in a quantum regime of transport) play a significant role in some experimental examples of molecular machines.