Physical Review a最新文献_第6页

Orbital-angular-momentum-enhanced phase estimation using non-Gaussian states with photon loss 带光子损耗的非高斯态轨道角动量增强相位估计

IF 2.9 2区物理与天体物理

Physical Review a Pub Date : 2023-08-22 DOI: 10.1103/physreva.108.022613

Yong J Chen, Jin-Wei Gao, Jin-Xuan Han, Zhonghui Yuan, Ruobing Li, Yongyuan Jiang, Jie Song

{"title":"Orbital-angular-momentum-enhanced phase estimation using non-Gaussian states with photon loss","authors":"Yong J Chen, Jin-Wei Gao, Jin-Xuan Han, Zhonghui Yuan, Ruobing Li, Yongyuan Jiang, Jie Song","doi":"10.1103/physreva.108.022613","DOIUrl":"https://doi.org/10.1103/physreva.108.022613","url":null,"abstract":"This study investigates the use of orbital angular momentum (OAM) to enhance phase estimation in Mach-Zehnder interferometers (MZIs) by employing non-Gaussian states as input resources in the presence of noise. Our research demonstrates that non-Gaussian states, particularly the photonsubtraction-then-addition (PSA) state, exhibit the best sensitivity in the presence of symmetric noise. Additionally, higher-order of Bose operator of non-Gaussian states provide better sensitivity for symmetric noise. OAM can mitigate the deterioration of noise, making it possible to estimate small phase shifts theta close to 0. OAM enhances the resolution and sensitivity of all input states and mitigating the deterioration caused by photon loss. Additionally, OAM enhances the resolution and sensitivity of all input states, enabling the sensitivity to approach the 1/N limit even under significant photon loss (e.g.,50% symmetric photon loss). These results hold promise for enhancing the sensitivity and robustness of quantum metrology, particularly in the presence of significant photon loss.","PeriodicalId":48702,"journal":{"name":"Physical Review a","volume":" ","pages":""},"PeriodicalIF":2.9,"publicationDate":"2023-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44238579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}