Techniques for quantum error correction using multimode grid states and related systems and methods
US12361313B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 21, 2022 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Dec 21, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y10/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for implementing a class of multimode bosonic codes that protect against errors within an ancilla qubit coupled to a bosonic system, that can be realized experimentally. A logical qubit state is represented by the states of multiple different modes of one or more bosonic systems, which may include multiple modes of a single bosonic system and/or single modes from multiple bosonic systems. Techniques for correcting errors are also described. In particular, a series of operations are described that autonomously detect and correct errors by repeatedly performing a sequence of operations that are each applied to the multiple bosonic modes and/or to the ancilla qubit that is coupled to each of the bosonic modes. The codes allow ancilla errors to propagate to the modes of the bosonic system as correctable errors, where they can be corrected, instead of presenting as logical errors in the ancilla qubit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.