Universal quantum computing using electro-nuclear wavefunctions of rare-earth ions
US12169760B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2021 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Nov 28, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A universal quantum computing system uses electro-nuclear wavefunctions of rare-earth ions embedded in an insulating solid state matrix. Each rare-earth ion represents a nuclear qubit that can be selectively operated as a passive or active qubit. The passive qubit is a passive electronic doublet at a non-degenerate ground state that stores the quantum information in the two different nuclear spin states possible in the non-degenerate ground state causing two different passive-state electro-nuclear wavefunctions. The active qubit is an active electronic doublet at a non-degenerate excited state that stores the quantum information in the two different nuclear spin states possible in the non-degenerate excited state. A laser source generates laser pulses to optically excite the rare-earth ions from the non-degenerate ground state into the non-degenerate excited state and vice versa, to locally control the electronic dipolar interaction in a tunable manner among at least two active qubits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.