Improving probabilistic error cancellation in the presence of non-stationary noise
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866910519381721088 |
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| author | Dasgupta, Samudra Humble, Travis S. |
| author_facet | Dasgupta, Samudra Humble, Travis S. |
| contents | We investigate the stability of probabilistic error cancellation (PEC) outcomes in the presence of non-stationary noise, which is an obstacle to achieving accurate observable estimates. Leveraging Bayesian methods, we design a strategy to enhance PEC stability and accuracy. Our experiments using a 5-qubit implementation of the Bernstein-Vazirani algorithm and conducted on the ibm_kolkata device reveal a 42% improvement in accuracy and a 60% enhancement in stability compared to non-adaptive PEC. These results underscore the importance of adaptive estimation processes to effectively address non-stationary noise, vital for advancing PEC utility. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_13269 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Improving probabilistic error cancellation in the presence of non-stationary noise Dasgupta, Samudra Humble, Travis S. Quantum Physics We investigate the stability of probabilistic error cancellation (PEC) outcomes in the presence of non-stationary noise, which is an obstacle to achieving accurate observable estimates. Leveraging Bayesian methods, we design a strategy to enhance PEC stability and accuracy. Our experiments using a 5-qubit implementation of the Bernstein-Vazirani algorithm and conducted on the ibm_kolkata device reveal a 42% improvement in accuracy and a 60% enhancement in stability compared to non-adaptive PEC. These results underscore the importance of adaptive estimation processes to effectively address non-stationary noise, vital for advancing PEC utility. |
| title | Improving probabilistic error cancellation in the presence of non-stationary noise |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2404.13269 |