Qubit ZooDemonstrates coherent oscillations in a semiconductor charge qubit: a single electron in a double quantum dot with qubit states defined by left/right dot occupation. Shows Rabi oscillations and Ramsey fringes, establishing the semiconductor charge qubit as a coherent platform despite severe charge noise.
Key Results
- Charge qubit: |L⟩ and |R⟩ states in double quantum dot
- Coherent oscillations with T₂* ~ 7 ns (charge-noise limited)
- Gate time: ~30 ps (fastest semiconductor qubit gate)
- Platform: GaAs/AlGaAs double quantum dot
Links
- Journal: Physical Review Letters
- arXiv: 1004.5616