Hybrid normal-superconducting Aharonov-Bohm quantum thermal device
- URL: http://arxiv.org/abs/2208.14336v1
- Date: Tue, 30 Aug 2022 15:23:40 GMT
- Title: Hybrid normal-superconducting Aharonov-Bohm quantum thermal device
- Authors: Gianmichele Blasi, Francesco Giazotto, G\'eraldine Haack
- Abstract summary: We propose and theoretically investigate the behavior of a ballistic Aharonov-Bohm (AB) ring when embedded in a N-S two-terminal setup.
We show in this work that it constitutes a promising hybrid quantum thermal device, as quantum heat engine and quantum thermal.
- Score: 0.0
- License: http://creativecommons.org/licenses/by-nc-sa/4.0/
- Abstract: 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 in this work 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.
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