{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T15:03:01Z","timestamp":1773241381469,"version":"3.50.1"},"reference-count":28,"publisher":"World Scientific Pub Co Pte Lt","issue":"01","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Open Syst. Inf. Dyn."],"published-print":{"date-parts":[[2018,3]]},"abstract":"<jats:p> We examine the dynamics of entanglement entropy of all parts in an open system consisting of a two-level dimer interacting with an environment of oscillators. The dimer-environment interaction is almost energy conserving. We find the precise link between decoherence and production of entanglement entropy. We show that not all environment oscillators carry significant entanglement entropy and we identify the oscillator frequency regions which contribute to the production of entanglement entropy. For energy conserving dimer-environment interactions the models are explicitly solvable and our results hold for all dimer-environment coupling strengths. We carry out a mathematically rigorous perturbation theory around the energy conserving situation in the presence of small non-energy conserving interactions. <\/jats:p>","DOI":"10.1142\/s1230161218500014","type":"journal-article","created":{"date-parts":[[2018,4,9]],"date-time":"2018-04-09T05:36:23Z","timestamp":1523252183000},"page":"1850001","source":"Crossref","is-referenced-by-count":5,"title":["Production of Entanglement Entropy by Decoherence"],"prefix":"10.1142","volume":"25","author":[{"given":"M.","family":"Merkli","sequence":"first","affiliation":[{"name":"Department of Mathematics and Statistics, Memorial University of Newfoundland St. John\u2019s, NL, Canada A1C 5S7, Canada"}]},{"given":"G. 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