Systems, methods and apparatus for active compensation of quantum processor elements
US9152923B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 2, 2013 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Aug 18, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N69/00
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods enable active compensation for unwanted discrepancies in the superconducting elements of a quantum processor. A qubit may include a primary compound Josephson junction (CJJ) structure, which may include at least a first secondary CJJ structure to enable compensation for Josephson junction asymmetry in the primary CJJ structure. A qubit may include a series LC-circuit coupled in parallel with a first CJJ structure to provide a tunable capacitance. A qubit control system may include means for tuning inductance of a qubit loop, for instance a tunable coupler inductively coupled to the qubit loop and controlled by a programming interface, or a CJJ structure coupled in series with the qubit loop and controlled by a programming interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.