Unconventional superconductivity in double quantum dots
Unconventional superconductivity in double quantum dots
复制标题
DOI:
10.1103/physrevb.90.220501
复制
发表时间:
2014-04
影响因子:
3.7
通讯作者:
B. Sothmann;S. Weiss;M. Governale;Jurgen Konig
中科院分区:
文献类型:
--
作者:
B. Sothmann;S. Weiss;M. Governale;Jurgen Konig
(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