Active stabilization of coherent controllers using nearby qubits
US12288132B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2021 |
| Grant date | Apr 29, 2025 |
| Priority date | — |
| Expiry date | Nov 18, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N10/40
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Aspects of the present disclosure describe techniques that involve an active stabilization of coherent controllers using nearby qubits. In an aspect, a quantum information processing (QIP) system for stabilizing phase damping in qubits is described that provides a first and a second qubit ion, measuring magnetic field fluctuations using the second qubit ion, and generates one or more magnetic fields based on the measured magnetic field fluctuations, the one or more magnetic fields being applied near the first qubit ion to cancel the magnetic field fluctuations to stabilize the phase damping of the first qubit ion. Another such QIP system performs provides a first and a second qubit ion, locks a local oscillator to a frequency reference associated with the second qubit ion, and tracks, using the local oscillator, a frequency of the first qubit ion based on the frequency reference. Methods associated with these QIP systems are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.