Apparatus and method for quantum error correction without measurement or active feedback
US11907808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2021 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for measurement-free (MF) quantum error correction (QEC). For example, one embodiment of a method comprises: determining an error syndrome on a first subset of ancilla qubits of a quantum processor; decoding the error syndrome to produce decoded results on a second subset of ancilla qubits of the quantum processor; applying the decoded results to one or more system qubits; and unconditionally resetting the first subset and/or second subset of ancilla qubits to remove entropy and/or noise from the quantum system, wherein the operations of determining the error syndrome, decoding the error syndrome, applying the error syndrome, and unconditionally resetting the first and/or second subset of ancilla qubits are performed responsive to a qubit controller executing quantum control instructions provided from or derived from a script and without transmitting measurement data related to the error syndrome to a non-quantum computing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.