Quantum shift register structures
US10850978B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jun 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/44
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A novel and useful controlled quantum shift register for transporting particles from one quantum dot to another in a quantum structure. The shift register incorporates a succession of qdots with tunneling paths and control gates. Applying appropriate control signals to the control gates, a particle or a split quantum state is made to travel along the shift register. The shift register also includes ancillary double interaction where two pairs of quantum dots provide an ancillary function where the quantum state of one pair is replicated in the second pair. The shift register also provides bifurcation where an access path is split into two or more paths. Depending on the control pulse signals applied, quantum dots are extended into multiple paths. Control of the shift register is provided by electric control pulses. An optional auxiliary magnetic field provides additional control of the shift register.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.