{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:02:21Z","timestamp":1760238141117,"version":"build-2065373602"},"reference-count":49,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T00:00:00Z","timestamp":1660780800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/2.zoppoz.workers.dev:443\/https\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["11605284","11775298","61833010","2020002","2020YFA0712700"],"award-info":[{"award-number":["11605284","11775298","61833010","2020002","2020YFA0712700"]}]},{"name":"Youth Innovation Promotion Association of CAS","award":["11605284","11775298","61833010","2020002","2020YFA0712700"],"award-info":[{"award-number":["11605284","11775298","61833010","2020002","2020YFA0712700"]}]},{"name":"National Key R&amp;D Program of China","award":["11605284","11775298","61833010","2020002","2020YFA0712700"],"award-info":[{"award-number":["11605284","11775298","61833010","2020002","2020YFA0712700"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>Focusing on the dynamics of quantumness in ensembles, we propose a framework to qualitatively and quantitatively characterize quantum channels from the perspective of the amount of quantumness in ensembles that a quantum channel can induce or reduce. Along this line, the quantumness power and dequantumness power are introduced. In particular, once a quantum dynamics described by time-varying quantum channels reduces the quantumness for any input ensembles all the time, we call it a completely dequantumness channel, whose relationship with Markovianity is analyzed through several examples.<\/jats:p>","DOI":"10.3390\/e24081146","type":"journal-article","created":{"date-parts":[[2022,8,18]],"date-time":"2022-08-18T21:39:21Z","timestamp":1660858761000},"page":"1146","update-policy":"https:\/\/2.zoppoz.workers.dev:443\/https\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Quantumness and Dequantumness Power of Quantum Channels"],"prefix":"10.3390","volume":"24","author":[{"given":"Hongting","family":"Song","sequence":"first","affiliation":[{"name":"Qian Xuesen Laboratory of Space Technology, China Academy of Space Technology, Beijing 100094, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nan","family":"Li","sequence":"additional","affiliation":[{"name":"Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China"},{"name":"School of Mathematical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,8,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1267","DOI":"10.1103\/RevModPhys.76.1267","article-title":"Decoherence, the measurement problem, and interpretations of quantum mechanics","volume":"76","author":"Schlosshauer","year":"2005","journal-title":"Rev. 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