{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T09:43:12Z","timestamp":1760175792774,"version":"build-2065373602"},"reference-count":25,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2020,2,15]],"date-time":"2020-02-15T00:00:00Z","timestamp":1581724800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11404246"],"award-info":[{"award-number":["11404246"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Quantum correlations of higher-dimensional systems are an important content of quantum information theory and quantum information application. The quantification of quantum correlation of high-dimensional quantum systems is crucial, but difficult. In this paper, using the second-order nonlinear optical effect and multiphoton interference enhancement effect, we experimentally implement the photonic qutrit states and demonstrate the spin-1 information entropic inequality for the first time to quantitative quantum correlation. Our work shows that information entropy is an important way to quantify quantum correlation and quantum information processing.<\/jats:p>","DOI":"10.3390\/e22020219","type":"journal-article","created":{"date-parts":[[2020,2,18]],"date-time":"2020-02-18T10:10:25Z","timestamp":1582020625000},"page":"219","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Experimentally Demonstrate the Spin-1 Information Entropic Inequality Based on Simulated Photonic Qutrit States"],"prefix":"10.3390","volume":"22","author":[{"given":"Lianzhen","family":"Cao","sequence":"first","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]},{"given":"Xia","family":"Liu","sequence":"additional","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]},{"given":"Yang","family":"Yang","sequence":"additional","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]},{"given":"Qinwei","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]},{"given":"Jiaqiang","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]},{"given":"Huaixin","family":"Lu","sequence":"additional","affiliation":[{"name":"Department of Physics and Optoelectronic Engineering, Weifang University, Weifang 261061, China"}]}],"member":"1968","published-online":{"date-parts":[[2020,2,15]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"256","DOI":"10.1126\/science.aau0818","article-title":"Probing entanglement in a many-body-localized system","volume":"364","author":"Lukin","year":"2019","journal-title":"Science"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"260502","DOI":"10.1103\/PhysRevLett.120.260502","article-title":"18-qubit entanglement with six photons\u2019 three degrees of freedom","volume":"120","author":"Wang","year":"2018","journal-title":"Phys. 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