An 11-qubit atom processor in silicon
Hermann Edlbauer, Junliang Wang, A M Saffat-Ee Huq, Ian Thorvaldson, Michael T Jones, Saiful Haque Misha, William J Pappas, Christian M Moehle, Yu-Ling Hsueh, Henric Bornemann, Samuel K Gorman, Yousun Chung, Joris G Keizer, Ludwik Kranz, Michelle Y Simmons · 2025
Read An 11-qubit atom processor in silicon by Hermann Edlbauer, Junliang Wang, A M Saffat-Ee Huq, Ian Thorvaldson, Michael T Jones, Saiful Haque Misha, William J Pappas, Christian M Moehle, Yu-Ling Hsueh, Henric Bornemann, Samuel K Gorman, Yousun Chung, Joris G Keizer, Ludwik Kranz, Michelle Y Simmons (2025) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-12711558.txt.
Description
Hermann Edlbauer and co-authors report an eleven-qubit atom processor built in silicon, in a 2025 paper. Single phosphorus atoms planted in silicon make fine qubits, since their nuclear spins hold coherence for seconds and can be read and steered precisely. Linking several atoms to one shared electron creates a small register, but a useful machine must entangle separate registers too.
Their processor joins two multi-atom registers through electron exchange. Careful calibration pushed all gate fidelities above ninety-nine percent, and Bell states between local and distant pairs reached state-of-the-art quality. The team also built shared entangled states across as many as eight nuclei. The work marks a step toward larger silicon quantum machines.
Catalog record
| CREATOR | Hermann Edlbauer, Junliang Wang, A M Saffat-Ee Huq, Ian Thorvaldson, Michael T Jones, Saiful Haque Misha, William J Pappas, Christian M Moehle, Yu-Ling Hsueh, Henric Bornemann, Samuel K Gorman, Yousun Chung, Joris G Keizer, Ludwik Kranz, Michelle Y Simmons |
|---|---|
| YEAR | 2025 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 31 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |