Noise classification through the output of random quantum circuits
US11574227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2019 |
| Grant date | Feb 7, 2023 |
| Priority date | — |
| Expiry date | Oct 18, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for characterizing noise in a quantum system, the quantum system including a plurality of qubits and a plurality of entangling gates native to the quantum system, includes generating a random quantum circuit on a quantum processor, the random quantum circuit comprising the plurality of entangling gates native to the quantum system. The method includes running a simulation of the random quantum circuit on a classical computer a plurality of times to obtain ideal outcomes, and running the random quantum circuit on the quantum processor a plurality of times to obtain experimental outcomes. The method includes grouping the experimental outcomes based on probabilities of the ideal outcomes to obtain a first distribution, and grouping the experimental outcomes based on probabilities of the experimental outcomes to obtain a second distribution. The method includes characterizing noise in the quantum system based on the first distribution and the second distribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.