Universal gates for ising TQFT via time-tilted interferometry
US7427771B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Sep 23, 2008 |
| Priority date | — |
| Expiry date | Nov 19, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Experiments suggest that the mathematically weakest non-abelian TQFT may be physically the most robust. Such TQFT's—the v=5/2 FQHE state in particular—have discrete braid group representations, so one cannot build a universal quantum computer from these alone. Time tilted interferometry provides an extension of the computational power (to universal) within the context of topological protection. A known set of universal gates has been realized by topologically protected methods using “time-tilted interferometry” as an adjunct to the more familiar method of braiding quasi-particles. The method is “time-tilted interferometry by quasi-particles.” The system is its use to construct the gates {g1, g2, g3}.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.