Qubit ZooIntroduces the resonant exchange (RX) qubit: a three-electron triple quantum dot qubit operated at the symmetric point where exchange couplings are equal. Achieves all-electrical control with first-order insensitivity to charge noise while maintaining fast gate times.
Key Results
- Three-electron qubit in triple quantum dot at symmetric operating point
- First-order insensitivity to charge noise (sweet spot)
- Gate times: ~1 ns (fast, all-electrical)
- T₂* ~ 1 μs at sweet spot (100× improvement over exchange-only at generic point)
Links
- Journal: Physical Review Letters
- arXiv: 1302.1933