Charge-4e transport could be useful for realizing parity-protected superconducting qubits. In this work, the authors demonstrated the controlled conversion between charge-2e dominated and charge-4e dominated supercurrent in a superconducting quantum interference device (SQUID) fabricated in an InAs two-dimensional electron gas proximitized by the vicinity to an epitaxial Al layer.
- Carlo Ciaccia
- Roy Haller
- Christian Schönenberger
