Multimode coupler to control interaction between quantum bits
US11658660B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2022 |
| Grant date | May 23, 2023 |
| Priority date | — |
| Expiry date | Jun 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N69/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device comprises first and second qubits, and a qubit coupler coupled between the first and second qubits. The second qubit comprises first and second modes with the first mode configured to store data. The qubit coupler comprises first and second modes, and operates in a first state or second state. In the first state, the first qubit is exchange coupled to the first mode of the qubit coupler, and the second mode of the second qubit is exchange coupled to the second mode of the qubit coupler, to suppress interaction between the first and second qubits. In the second state, the first qubit and the first mode of the second qubit are exchange coupled to both the first and second modes the qubit coupler, to enable interaction between the first and second qubits for an entanglement gate operation in response to a control signal applied to the qubit coupler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.