Qubit ZooDispersive microwave spectroscopy of gate-defined Andreev bound states in an Al/InAs planar Josephson junction coupled to a superconducting resonator.
Key Results
- Resolves isolated, tunable Andreev modes with measured transparency up to 99.94%.
- Reports an average induced superconducting gap of approximately 150 μeV.
- Demonstrates a noninvasive spectroscopy capability relevant to future topological-state diagnostics, without claiming a topological transition or Majorana mode.
Links
- Journal: Physical Review Research
- arXiv: 2408.08487