Phase-Coherent Heat Circulator Based on Multiterminal Josephson Junctions

被引：23

作者：

Hwang, Sun-Yong ^{[1
,2
]}

Giazotto, Francesco ^{[3
,4
]}

Sothmann, Bjoern ^{[1
,2
]}

机构：

[1] Univ Duisburg Essen, Theoret Phys, D-47048 Duisburg, Germany

[2] CENIDE, D-47048 Duisburg, Germany

[3] CNR, Ist Nanosci, NEST, Piazza San Silvestro 12, I-56127 Pisa, Italy

[4] Scuola Normale Super Pisa, Piazza San Silvestro 12, I-56127 Pisa, Italy

来源：

PHYSICAL REVIEW APPLIED | 2018年 / 10卷 / 04期

基金：

欧洲研究理事会;

关键词：

CALORITRONICS; TRANSPORT;

D O I：

10.1103/PhysRevApplied.10.044062

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We theoretically propose a phase-coherent thermal circulator based on ballistic multiterminal Josephson junctions. The breaking of time-reversal symmetry by either a magnetic flux or a superconducting phase bias allows heat to flow preferentially in one direction from one terminal to the next while heat flow in the opposite direction is suppressed. We find that our device can achieve a high circulation efficiency over a wide range of parameters and that its performance is robust with respect to the presence of disorder. We provide estimates for the expected heat currents for realistic samples.

引用

页数：6

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