Hybrid normal-superconducting Aharonov-Bohm quantum thermal device

被引：6
作者：
Blasi, Gianmichele [1 ]
Giazotto, Francesco [2 ,3 ]
Haack, Geraldine [1 ]
机构：
[1] Univ Geneva, Dept Appl Phys, CH-1211 Geneva, Switzerland
[2] CNR, NEST, Inst Nanosci, Piazza San Silvestro 12, I-56127 Pisa, Italy
[3] Scuola Normale Super Pisa, Piazza San Silvestro 12, I-56127 Pisa, Italy
来源：
QUANTUM SCIENCE AND TECHNOLOGY | 2023年 / 8卷 / 01期
基金：
瑞士国家科学基金会; 欧盟地平线“2020”;
关键词：
Aharonov-Bohm; quantum heat engine; quantum thermal rectifier; superconducting; phase-coherent caloritronics; HEAT; COHERENT; OSCILLATIONS; PHYSICS; STATE;
D O I：
10.1088/2058-9565/acacbf
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 technologies and we show in this work that it constitutes a promising hybrid quantum thermal device, as a 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%
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页数：16
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