Microsoft patents method to fix errors in quantum computer circuits
Microsoft describes a way to detect and fix mistakes in specific types of quantum operations called Clifford circuits. The method creates a special code that helps a decoder identify where errors occurred on a grid of quantum bits.
In the filing’s own words
A method to correct a fault in the application of a Clifford circuit to a qubit register of a quantum computer comprises: (a) receiving circuit data defining the Clifford circuit; (b) receiving additional data identifying one or more measurements belonging to each of a plurality of faces of a lattice; (c) emitting an outcome code based on the circuit data, the outcome code including a series of outcome checks each corresponding to an anticipated error syndrome for the application of the Clifford circuit to the qubit register; and (d) emitting a topological outcome code based on the circuit data, the additional data, and the outcome code, the topological outcome code including a series of check operators that support quantum-error correction via a topological decoder, thereby enabling fault correction in the application of the Clifford circuit to the qubit register.
What exactly they claim (claim 1)
1. A method to correct a fault in an application of a Clifford circuit to a qubit register of a quantum computer, the method comprising: receiving circuit data defining the Clifford circuit; receiving additional data identifying one or more measurements belonging to each of a plurality of faces of a lattice; emitting an outcome code based on the circuit data, the outcome code including a series of outcome checks each corresponding to an anticipated error syndrome for the application of the Clifford circuit to the qubit register; and emitting a topological outcome code based on the circuit data, the additional data, and the outcome code, the topological outcome code including a series of check operators that support quantum-error correction via a topological decoder, thereby enabling fault correction in the application of the Clifford circuit to the qubit register.
Facts
- Company
- Microsoft (Microsoft Technology Licensing, LLC)
- Official title
- Topological outcome codes for clifford circuits
- Patent number
- US12762455B2
- Application number
- 18449176
- Filed
- Aug 14, 2023
- Granted
- Oct 13, 2026
- Inventors
- 4
- Claims
- 20
Classified under
G06N 10/70 Physics & computingMore from Microsoft in Chips & hardware
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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.