Quantum approximate optimization
US11120357B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 7, 2018 |
| Grant date | Sep 14, 2021 |
| Priority date | — |
| Expiry date | Jul 1, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/17
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a general aspect, a computing system is configured to execute a quantum approximate optimization algorithm. In some aspects, a control system identifies a pair of qubit devices in a quantum processor. The quantum processor includes a connection that provides coupling between the pair of qubit devices. ZZ coupling between the pair of qubit devices is activated to execute a cost function defined in the quantum approximate optimization algorithm. The cost function is associated with a maximum cut problem, and the ZZ coupling is activated by allowing the pair of qubits to evolve under a natural Hamiltonian for a time period τ. One or more of the pair of qubit devices is measured to obtain an output from an execution of the quantum approximate optimization algorithm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.