Qubit ZooProposes the Mølmer-Sørensen gate: a two-qubit entangling gate for trapped ions that works by simultaneously driving both red and blue motional sidebands, creating an effective spin-spin interaction that is insensitive to the motional state. This eliminates the requirement for ground-state cooling that limited the original Cirac-Zoller scheme.
Key Results
- Two-qubit gate via bichromatic laser driving
- Insensitive to motional state (works at finite temperature)
- Gate time: ~100 μs (typical)
- Became the dominant two-qubit gate in all major trapped-ion platforms
Links
- Journal: Physical Review Letters
- arXiv: quant-ph/9810039