Methods and apparatuses for identifying and controlling quantum emitters in a quantum system
US11262785B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 3, 2019 |
| Grant date | Mar 1, 2022 |
| Priority date | — |
| Expiry date | Jun 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D62/814
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosure describes an adaptive and optimal imaging of individual quantum emitters within a lattice or optical field of view for quantum computing. Advanced image processing techniques are described to identify individual optically active quantum bits (qubits) with an imager. Images of individual and optically-resolved quantum emitters fluorescing as a lattice are decomposed and recognized based on fluorescence. Expected spatial distributions of the quantum emitters guides the processing, which uses adaptive fitting of peak distribution functions to determine the number of quantum emitters in real time. These techniques can be used for the loading process, where atoms or ions enter the trap one-by-one, for the identification of solid-state emitters, and for internal state-detection of the quantum emitters, where each emitter can be fluorescent or dark depending on its internal state. This latter application is relevant to efficient and fast detection of optically active qubits in quantum simulations and quantum computing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.