Qubit ZooProposes and analyzes the gatemonium: a fluxonium-like qubit where the large Josephson junction is replaced by a gate-tunable semiconductor junction, combining fluxonium’s noise protection with gatemon’s voltage tunability. Avoids flux-tuning and associated flux noise.
Key Results
- Fluxonium circuit topology with semiconductor weak link
- Gate-voltage tunability of qubit parameters
- Inherits fluxonium protection at half-flux-quantum bias
- Proposed implementation in InAs/Al or Ge/Al heterostructures
Links
- arXiv: 2407.12345