Transport signatures of an Andreev molecule in a quantum dot-superconductor-quantum dot setup

Beilstein Journal of Nanotechnology
Zoltán ScherüblS Csonka

Abstract

Hybrid devices combining quantum dots with superconductors are important building blocks of conventional and topological quantum-information experiments. A requirement for the success of such experiments is to understand the various tunneling-induced non-local interaction mechanisms that are present in the devices, namely crossed Andreev reflection, elastic co-tunneling, and direct interdot tunneling. Here, we provide a theoretical study of a simple device that consists of two quantum dots and a superconductor tunnel-coupled to the dots, often called a Cooper-pair splitter. We study the three special cases where one of the three non-local mechanisms dominates, and calculate measurable ground-state properties, as well as the zero-bias and finite-bias differential conductance characterizing electron transport through this device. We describe how each non-local mechanism controls the measurable quantities, and thereby find experimental fingerprints that allow one to identify and quantify the dominant non-local mechanism using experimental data. Finally, we study the triplet blockade effect and the associated negative differential conductance in the Cooper-pair splitter, and show that they can arise regardless of the nature of the ...Continue Reading

References

Nov 5, 1990·Physical Review Letters·D V Averin, Y V Nazarov
Jan 9, 1995·Physical Review Letters·J M Byers, M E Flatté
May 15, 2002·Physical Review Letters·D SprinzakHadas Shtrikman
Dec 17, 2004·Physical Review Letters·D BeckmannH V Löhneysen
Aug 11, 2005·Physical Review Letters·S RussoA F Morpurgo
Dec 31, 2005·Physical Review Letters·M A SillanpääP J Hakonen
Dec 31, 2005·Physical Review Letters·T DutyP Delsing
Feb 7, 2007·Physical Review Letters·P Cadden-Zimansky, V Chandrasekhar
Oct 13, 2007·Physical Review Letters·T Sand-JespersenJ Nygård
Oct 16, 2009·Nature·L HofstetterC Schönenberger
Apr 7, 2010·Physical Review Letters·L G HerrmannC Strunk
Jun 24, 2010·Nanotechnology·A KleineC Schönenberger
Oct 27, 2011·Physical Review Letters·L HofstetterC Schönenberger
Mar 10, 2012·Physical Review Letters·T FreyA Wallraff
Jul 19, 2012·Nature Communications·Jay D Sau, S Das Sarma
Oct 19, 2012·Nature·K D PeterssonJ R Petta
Oct 30, 2012·Physical Review Letters·J SchindeleC Schönenberger
Jan 10, 2013·Nature Communications·David J ClarkeKirill Shtengel
Jun 12, 2013·Physical Review Letters·W ChangC M Marcus
Aug 27, 2013·Physical Review Letters·Martin Leijnse, Karsten Flensberg
Dec 18, 2013·Nature Nanotechnology·Eduardo J H LeeSilvano De Franceschi
Apr 15, 2014·Physical Review Letters·Erikas GaidamauskasKarsten Flensberg
Feb 15, 2013·Physical Review Letters·Bum-Kyu KimNam Kim
Mar 21, 2015·Physical Review Letters·Z B TanP J Hakonen
Dec 10, 2015·Physical Review Letters·G FülöpS Csonka
Apr 6, 2017·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Kacper WrześniewskiIreneusz Weymann
Sep 21, 2017·Nature Communications·Zhaoen SuSergey M Frolov
Mar 16, 2018·Physical Review Letters·Nicklas WalldorfChristian Flindt

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Citations

Apr 15, 2020·Nature Communications·Zoltán ScherüblSzabolcs Csonka
Sep 21, 2021·Nano Letters·Olivér KürtössySzabolcs Csonka

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