Print Email Facebook Twitter Charge Sensing the Parity of an Andreev Molecule Title Charge Sensing the Parity of an Andreev Molecule Author van Driel, D. (TU Delft Business Development; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Roovers, B. (TU Delft Medical Instruments & Bio-Inspired Technology; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Zatelli, F. (TU Delft QRD/Kouwenhoven Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Bordin, A. (TU Delft QRD/Kouwenhoven Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Wang, Guanzhong (TU Delft QRD/Wimmer Group; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) van Loo, N. (TU Delft QRD/Kouwenhoven Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Wolff, J.C. (TU Delft QRD/Kouwenhoven Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Mazur, G.P. (TU Delft QRD/Wimmer Group; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Kouwenhoven, Leo P. (TU Delft QN/Kouwenhoven Lab; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Dvir, T. (TU Delft Qubit Research Division; TU Delft QuTech Advanced Research Centre; Kavli institute of nanoscience Delft) Department Business Development Date 2024 Abstract The proximity effect of superconductivity on confined states in semiconductors gives rise to various bound states such as Andreev bound states, Andreev molecules, and Majorana zero modes. While such bound states do not conserve charge, their fermion parity is a good quantum number. One way to measure parity is to convert it to charge first, which is then sensed. In this work, we sense the charge of Andreev bound states and Andreev molecules in an InSb-Al hybrid nanowire using an integrated quantum dot operated as a charge sensor. We show how charge sensing measurements can resolve the even and odd states of an Andreev molecule, without affecting the parity. Such an approach can be further used for parity measurements of Majorana zero modes in Kitaev chains based on quantum dots. To reference this document use: http://resolver.tudelft.nl/uuid:6d89c41f-57b7-4305-92ca-0f5f5b1bc4ce DOI https://doi.org/10.1103/PRXQuantum.5.020301 Source PRX Quantum, 5 (2) Part of collection Institutional Repository Document type journal article Rights © 2024 D. van Driel, B. Roovers, F. Zatelli, A. Bordin, Guanzhong Wang, N. van Loo, J.C. Wolff, G.P. Mazur, Leo P. Kouwenhoven, T. Dvir Files PDF PRXQuantum.5.020301.pdf 4.54 MB Close viewer /islandora/object/uuid:6d89c41f-57b7-4305-92ca-0f5f5b1bc4ce/datastream/OBJ/view