Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

Broadcast soon

In this seminar I will talk about a recent work we published on the arxiv (arXiv:2208.14336).

In this work we propose and theoretically investigate the behavior of a ballistic Aharonov-Bohm (AB) ring when embedded in a N-S two-terminal setup, consisting of a normal metal (N) and superconducting (S) leads. This device is based on available current technologie and we show that it constitutes a promising hybrid quantum thermal device, as quantum heat engine and quantum thermal rectifier. Remarkably, we evidence the interplay of single-particle quantum interferences in the AB ring and of the superconducting properties of the structure to achieve the hybrid operating mode for this quantum device. Its efficiency as a quantum heat engine reaches 55% of the Carnot efficiency, and we predict thermal rectification factor attaining 350%. These predictions make this device highly promising for future phase-coherent caloritronic nanodevices.

Presential seminar, with parallel Zoom stream:  


Contact details:

Rosa Lopez

Contact form

This web uses cookies for data collection with a statistical purpose. If you continue browsing, it means acceptance of the installation of the same.

More info I agree