Dipole element for superconducting circuits
US11302856B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 24, 2020 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jan 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N60/805
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an inductive dipole element for a superconducting microwave quantum circuit. The dipole element comprises a DC-SQUID formed by a pair of Josephson junctions shunted by an inductance, wherein the Josephson junctions have equal energy, and the Josephson junctions and the inductance are arranged such that each of the junctions forms a loop with the inductance. The two loops are asymmetrically threaded with external magnetic DC fluxes φext1 and φext2, respectively, such that φext1=π and φext2=0, wherein parametric pumping is enabled by modulating the total flux φΣ=φext,1+φext,2 threading the dipole element, thereby allowing even-wave mixing between modes that participate in the dipole element with no Kerr-like interactions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.