# Randomized benchmarking in the presence of time-correlated dephasing noise

@article{Qi2021RandomizedBI, title={Randomized benchmarking in the presence of time-correlated dephasing noise}, author={Jiaan Qi and Hui Khoon Ng}, journal={Physical Review A}, year={2021} }

Randomized benchmarking has emerged as a popular and easy-to-implement experimental technique for gauging the quality of gate operations in quantum computing devices. A typical randomized benchmarking procedure identifies the exponential decay in the fidelity as the benchmarking sequence of gates increases in length, and the decay rate is used to estimate the fidelity of the gate. That the fidelity decays exponentially, however, relies on the assumption of time-independent or static noise in…

## 3 Citations

### Towards a general framework of Randomized Benchmarking for non-Markovian Noise

- Mathematics
- 2022

The rapid progress in the development of quantum devices is in large part due to the availability of a wide range of characterization techniques allowing to probe, test and adjust them. Nevertheless,…

### Estimation of correlations and nonseparability in quantum channels via unitarity benchmarking

- Computer SciencePhysical Review Research
- 2022

Sub-unitarity measures are introduced that are invariant under local changes of basis, generalize the unitarity of a channel, and allow for the analysis of quantum information exchange within channels and provide an information-disturbance relation.

### Randomized Benchmarking for Non-Markovian Noise

- Computer SciencePRX Quantum
- 2021

It is shown that one can identify non-Markovian features of the noise directly from the ASF through its deviations from the Markovian case, and a set of methods to collectively estimate these deviations, non- markovian memory time scales, and diagnose (in)coherence of non-markovian noise in an RB experiment are proposed.

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