Systems and methods for modeling noise sequences and calibrating quantum processors
US12039465B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 2020 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | May 18, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y35/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Calibration techniques for devices of analog processors to remove time-dependent biases are described. Devices in an analog processor exhibit a noise spectrum that spans a wide range of frequencies, characterized by 1/f spectrum. Offset parameters are determined assuming only a given power spectral density. The algorithm determines a model for a measurable quantity of a device in an analog processor associated with a noise process and an offset parameter, determines the form of the spectral density of the noise process, approximates the noise spectrum by a discrete distribution via the digital processor, constructs a probability distribution of the noise process based on the discrete distribution and evaluates the probability distribution to determine optimized parameter settings to enhance computational efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.