{"title":"Enhancing robustness of quantum states under correlated noisy channels","authors":"Natasha Awasthi","doi":"10.1007/s00340-025-08416-z","DOIUrl":null,"url":null,"abstract":"<div><p>Considering the quantum memory channel, we investigate the connection between quantum correlation and coherence for correlated channels. Initially, various results were obtained by considering the action of noise channels on the initial state. The quantum correlation behavior does not increase by the quantum operation or by the action of noise channel. Similarly, coherence remains slow for various initial states under correlated channels. In this work, we observed the decrement of quantum correlation and coherence, which can be improved by choosing the initial state and by adjusting the parameters. Our results provide valuable insight into defining the robustness of the pure state in comparison with the mixed state under correlated channels, which offers practical solutions for quantum information processing task.</p></div>","PeriodicalId":474,"journal":{"name":"Applied Physics B","volume":"131 3","pages":""},"PeriodicalIF":2.0000,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Physics B","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s00340-025-08416-z","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"OPTICS","Score":null,"Total":0}
引用次数: 0
Abstract
Considering the quantum memory channel, we investigate the connection between quantum correlation and coherence for correlated channels. Initially, various results were obtained by considering the action of noise channels on the initial state. The quantum correlation behavior does not increase by the quantum operation or by the action of noise channel. Similarly, coherence remains slow for various initial states under correlated channels. In this work, we observed the decrement of quantum correlation and coherence, which can be improved by choosing the initial state and by adjusting the parameters. Our results provide valuable insight into defining the robustness of the pure state in comparison with the mixed state under correlated channels, which offers practical solutions for quantum information processing task.
期刊介绍：
Features publication of experimental and theoretical investigations in applied physics
Offers invited reviews in addition to regular papers
Coverage includes laser physics, linear and nonlinear optics, ultrafast phenomena, photonic devices, optical and laser materials, quantum optics, laser spectroscopy of atoms, molecules and clusters, and more
94% of authors who answered a survey reported that they would definitely publish or probably publish in the journal again
Publishing essential research results in two of the most important areas of applied physics, both Applied Physics sections figure among the top most cited journals in this field.
In addition to regular papers Applied Physics B: Lasers and Optics features invited reviews. Fields of topical interest are covered by feature issues. The journal also includes a rapid communication section for the speedy publication of important and particularly interesting results.
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