Direct Microwave Spectroscopy of Andreev Bound States in Planar Ge Josephson Junctions

We demonstrate microwave measurements of the Andreev-bound-state (ABS) spectrum in planar Josephson junctions (JJs) defined in Ge high-mobility two-dimensional hole gases contacted by superconducting platinum germanosilicide (PtSiGe). The JJs and readout circuitry are located on separate chips and i...

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Bibliographic Details

Published in:	PRX Quantum
Main Authors:	M. Hinderling, S. C. ten Kate, M. Coraiola, D.Z. Haxell, M. Stiefel, M. Mergenthaler, S. Paredes, S.W. Bedell, D. Sabonis, F. Nichele
Format:	Article
Language:	English
Published:	American Physical Society 2024-09-01
Online Access:	http://doi.org/10.1103/PRXQuantum.5.030357