{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:34:48Z","timestamp":1760240088134,"version":"build-2065373602"},"reference-count":44,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2019,3,8]],"date-time":"2019-03-08T00:00:00Z","timestamp":1552003200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002850","name":"Fondo Nacional de Desarrollo Cient\u00edfico y Tecnol\u00f3gico","doi-asserted-by":"publisher","award":["11121318"],"award-info":[{"award-number":["11121318"]}],"id":[{"id":"10.13039\/501100002850","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>We study the classical and quantum correlations in the minimum error discrimination (ME) of two non-orthogonal pure quantum states. In particular, we consider quantum discord, thermal discord and entropy generation. We show that ME allows one to reach the accessible information between the two involved parties, Alice and Bob, in the discrimination process. We determine the amount of quantum discord that is consumed in the ME and show that the entropy generation is, in general, higher than the thermal discord. However, in certain cases the entropy generation is very close to thermal discord, which indicates that, in these cases, the process generates the least possible entropy. Moreover, we also study the ME process as a thermodynamic cycle and we show that it is in agreement with the second law of thermodynamics. Finally, we study the relation between the accessible information and the optimum success probability in ME.<\/jats:p>","DOI":"10.3390\/e21030263","type":"journal-article","created":{"date-parts":[[2019,3,8]],"date-time":"2019-03-08T04:58:35Z","timestamp":1552021115000},"page":"263","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Quantum Discord, Thermal Discord, and Entropy Generation in the Minimum Error Discrimination Strategy"],"prefix":"10.3390","volume":"21","author":[{"given":"Omar","family":"Jim\u00e9nez","sequence":"first","affiliation":[{"name":"Centro de \u00d3ptica e Informaci\u00f3n Cu\u00e1ntica, Facultad de Ciencias, Universidad Mayor, Camino La Pir\u00e1mide N\u00b05750, Huechuraba, Santiago, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2856-441X","authenticated-orcid":false,"given":"Miguel Angel","family":"Sol\u00eds-Prosser","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Universidad de Concepci\u00f3n, 160-C Concepci\u00f3n, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9589-1939","authenticated-orcid":false,"given":"Leonardo","family":"Neves","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Universidade Federal de Minas Gerais, Belo Horizonte-MG 31270-901, Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aldo","family":"Delgado","sequence":"additional","affiliation":[{"name":"Departamento de F\u00edsica, Universidad de Concepci\u00f3n, 160-C Concepci\u00f3n, Chile"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,3,8]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"671","DOI":"10.1038\/nphys2376","article-title":"Observing the operational significance of discord consumption","volume":"8","author":"Gu","year":"2012","journal-title":"Nat. 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