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arXiv · 1806.05518

Revealing attractive electron-electron interaction in a quantum dot by full counting statistics

Eric Kleinherbers·Philipp Stegmann·Jürgen König
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Abstract

Recent experiments [Nature 521, 196 (2015) and Nat. Commun. 8, 395 (2017)] have presented evidence for electron pairing in a quantum dot beyond the superconducting regime. Here, we show that the impact of an attractive electron-electron interaction on the full counting statistics of electron transfer through a quantum dot is qualitatively different from the case of a repulsive interaction. In particular, the sign of higher-order (generalized) factorial cumulants reveals more pronounced correlations, which even survive in the limit of fast spin relaxation.

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Eric Kleinherbers, Philipp Stegmann, Jürgen König. 2018-07-18. Revealing attractive electron-electron interaction in a quantum dot by full counting statistics. https://doi.org/10.1088/1367-2630%2Faad14a

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