Control of charge carriers in quantum information processing architectures
US12026588B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 10, 2020 |
| Grant date | Jul 2, 2024 |
| Priority date | — |
| Expiry date | Jun 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods are disclosed for controlling charge stability in a device for quantum information processing. According to examples, a device for quantum information processing comprises a first plurality of confinement regions confining spinful charge carriers for use as qudits. The device further comprises a second plurality of confinement regions confining spinful charge carriers, each confinement region of the second plurality of confinement regions adjacent to a confinement region of the first plurality of confinement regions. The device further comprises one or more charge reservoirs, wherein each confinement region of the second plurality of confinement regions is attachable to a charge reservoir. According to examples, a method for controlling charge stability comprises selectively tuning the relative energy levels of the first plurality of confinement regions and adjacent confinement regions of the second plurality of confinement regions such that, if a spinful charge carrier leaks from a confinement region of the first plurality of confinement regions, then the spinful charge carrier is replaced to ensure that the confinement region of the first plurality of confinement regions …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.