Unconventional superconductivity in double quantum dots

Unconventional superconductivity in double quantum dots
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DOI:
10.1103/physrevb.90.220501
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发表时间:
2014-04
期刊:
影响因子:
3.7
通讯作者:
B. Sothmann;S. Weiss;M. Governale;Jurgen Konig
B. Sothmann;S. Weiss;M. Governale;Jurgen Konig
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
B. Sothmann;S. Weiss;M. Governale;Jurgen Konig

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(2014年4月3日收稿,2014年11月17日收稿,2014年12月1日发表)电子对的形成是超导的先决条件。电子的费米子性质产生了四类超导相关,它们在自旋、空间和时间上具有明确的对称性。在这里,我们建议双量子点在非均匀磁场的存在下与常规波超导耦合,作为展示非常规配对的模型系统。由于它们的自由度小,可调的网关进化,量子点系统是获得非常规配对的基本洞察力的理想选择。我们提出了两种基于Josephson或andreev光谱的非常规超导探测方案。PACS编号(s): 73.23 . hk,72.25.Mk,74.20.Rp,74.45.+c
(Received 3 April 2014; revised manuscript received 17 November 2014; published 1 December 2014)The formation of electron pairs is a prerequisite of superconductivity. The fermionic nature of electronsyields four classes of superconducting correlations with definite symmetry in spin, space, and time. Here, wesuggestdoublequantumdotscoupledtoconventionals-wavesuperconductorsinthepresenceofinhomogeneousmagnetic fields as a model system exhibiting unconventional pairing. Due to their small number of degrees offreedom,tunablebygatevoltages,quantum-dotsystemsareidealtogainfundamentalinsightintounconventionalpairing. We propose two detection schemes for unconventional superconductivity, based on either Josephson orAndreev spectroscopy.DOI: 10.1103/PhysRevB.90.220501 PACS number(s): 73 .23.Hk,72.25.Mk,74.20.Rp,74.45.+c