https://m2.mtmt.hu/ eng 2026-10-24 14:49 JournalArticle 36854040 VALIDATED true 0 false 2026-10-10T16:23:40.869+0000 2026-07-15T07:33:57.174+0000 2026-01-09T06:29:18.324+0000 true 10079265 Tomcsik Adrienn /api/admin/10079265 Admin true 2026-09-28T07:56:32.025+0000 2026-01-09T08:18:20.050+0000 true 10019782 Csámer Iván /api/admin/10019782 Admin true 10019782 Admin 10003133 /api/admin/10003133 Boros Annamária true 10003133 true 2026-06-26T09:02:03.860+0000 true false true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle true 10000059 Article true 24 24 /api/publicationtype/24 PublicationType 1 true 24 JournalArticle /api/subtype/10000059 Szakcikk SubType 101 true 10000059 true 1 /api/category/1 Category true 1 Homa, Gabor An Exact Markovian Decoherence Dynamics of Two Interacting Harmonic Oscillators Coupled to a Bosonic Heat Bath true true /api/journal/10030492 REVIEWED true false 10030492 false 10030492 true 2050-3911 2050-3911 Journal FOREIGN 2025 12 123A02 123A02 28 2025 We present an exact analytical solution of the Hu-Paz-Zhang master equation in a precise Markovian limit for a system of two harmonically coupled harmonic oscillators interacting with a common thermal bath of harmonic oscillators. The thermal bath is initially considered to be at arbitrary temperatures and characterized by an Ohmic Lorentz-Drude spectral density. In the examined system, couplings between the two harmonic oscillators and the environment ensure a complete decoupling of the center-of-mass and relative degrees of freedom, resulting in undamped dynamics in the relative coordinate. The exact time evolution is used to analyze the system's entanglement dynamics, quantified through logarithmic negativity and quantum mutual information, while ensuring the positivity of the density operator to confirm the physical validity of the results. We demonstrate that, under certain parameter regimes and initial conditions, the asymptotic dynamics can give rise to periodic entanglement-disentanglement behavior. Furthermore, numerical simulations reveal that for negative values of the direct coupling between the oscillators, which are sufficiently close to a critical lower bound beyond which the system becomes unstable, the system can maintain entanglement across a broad temperature range and for arbitrarily long durations. Funding 2061461 /api/funding/2061461 false true Funding 2061462 /api/funding/2061462 false true Funding 2061463 /api/funding/2061463 false true 2026 true true true false true false GOLD 2026-10-10 true https://doi.org/10.1093/ptep/ptaf173 1 0 1 1 0 1 1 1 1 1 1 1 1 1 0 0 1 1 1 1 0 8 8 Folyóiratcikk Journal Article 24 1 Könyvrészlet Chapter in Book 25 0 Könyv Book 23 0 Egyéb konferenciaközlemény Conference paper 31 0 Egyéb konferenciakötet Conference proceedings 32 0 Oltalmi formák Protection forms 26 0 Disszertáció Thesis 28 0 Egyéb Miscellaneous 29 0 Alkotás Achievement 22 0 Kutatási adat Research data 33 0 Folyóiratcikk Journal Article 24 0 0 0 Könyvrészlet Chapter in Book 25 0 0 0 Könyv Book 23 0 0 0 Egyéb konferenciaközlemény Conference paper 31 0 0 0 Egyéb konferenciakötet Conference proceedings 32 0 0 0 Oltalmi formák Protection forms 26 0 0 0 Disszertáció Thesis 28 0 0 0 Egyéb Miscellaneous 29 0 0 0 Alkotás Achievement 22 0 0 0 Kutatási adat Research data 33 0 0 0 2026 0 1 1 1 1 Q1 false false false false 2026-01-08T06:36:20.531+0000 Elméleti Fizika Tanszék (PTE / TTK / FI); Gyógyszerészeti Intézet (SE / GYTK); Komplex Rendszerek Fizikája Tanszék (ELTE / TTK / FizCsill_I); Kvantuminformatika és Komplex Rendszerek Kutató... (SZFI / KKO); Kvantumoptikai és Kvantuminformatikai Osztály (SZFI) 5 44 5 5 0 true 10003133 Language 10002 /api/language/10002 Angol English true 2 true PersonAuthorship 132642992 /api/authorship/132642992 1 0.2 true false true Author 10065786 /api/author/10065786 Homa Gábor true true Homa Gabor true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 132642993 /api/authorship/132642993 2 0.2 false false true Author 10101517 /api/author/10101517 Hamar Dávid true true Hamar David true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 132642994 /api/authorship/132642994 3 0.2 false false false Author 10085079 /api/author/10085079 Bernád József Zsolt true true Bernad Jozsef Zsolt true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 132642995 /api/authorship/132642995 4 0.2 false false false Author 10000504 /api/author/10000504 Ádám Péter true 10000504 true Adam Peter true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PersonAuthorship 132642996 /api/authorship/132642996 5 0.2 false true false Author 10002242 /api/author/10002242 Csordás András true 10002242 true Csordas Andras true false false AuthorshipType 1 /api/authorshiptype/1 0 true 0 true false true PublicationIdentifier 31148323 /api/publicationidentifier/31148323 PlainSource 6 /api/publicationsource/6 PublicationSourceType 10001 /api/publicationsourcetype/10001 true true true DOI DOI https://doi.org/@@@ true true 6 true GOLD true IDENTICAL 10.1093/ptep/ptaf173 https://doi.org/10.1093/ptep/ptaf173 false true PublicationIdentifier 31148324 /api/publicationidentifier/31148324 PlainSource 1 /api/publicationsource/1 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true WoS WoS https://www.webofscience.com/wos/woscc/full-record/@@@ true true 1 true IDENTICAL 001651578900001 https://www.webofscience.com/wos/woscc/full-record/001651578900001 false true PublicationIdentifier 31148373 /api/publicationidentifier/31148373 PlainSource 3 /api/publicationsource/3 PublicationSourceType 10003 /api/publicationsourcetype/10003 false true true Scopus Scopus http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-@@@ true true 3 true IDENTICAL 105026401280 http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105026401280 false true PublicationIdentifier 31941749 /api/publicationidentifier/31941749 PlainSource 40 /api/publicationsource/40 PublicationSourceType 10006 /api/publicationsourcetype/10006 true true true Egyéb URL Other URL @@@ true true 40 true NONE IDENTICAL https://www.scopus.com/pages/publications/105026401280?origin=resultslist https://www.scopus.com/pages/publications/105026401280?origin=resultslist false true Classification 10154 /api/classification/10154 true true Keyword 10762 /api/keyword/10762 true 10762 true Keyword 1006792 /api/keyword/1006792 true 1006792 true Keyword 1008132 /api/keyword/1008132 true 1008132 true Keyword 1017340 /api/keyword/1017340 true 1017340 true Keyword 1022110 /api/keyword/1022110 true 1022110 true Keyword 1058543 /api/keyword/1058543 true 1058543 true Keyword 1082697 /api/keyword/1082697 true 1082697 true Keyword 1404663 /api/keyword/1404663 true 1404663 true Keyword 1498963 /api/keyword/1498963 true true SjrRating 11614128 /api/sjrrating/11614128 45 0.24 journal RatingType 10002 /api/ratingtype/10002 sjr true true ClassificationExternal 3101 /api/classificationexternal/3101 true 3101 true Q1 DIRECT true true /api/publication/36854040 <div class="JournalArticle Publication long-list"> <div class="authors"> <img title="Forrásközlemény" style="float: left" src="/frontend/resources/grid/publication-core-icon.png"> <img title="Idézőközlemény" style="float: left" src="/frontend/resources/grid/publication-citation-icon.png"> <div class="autype autype0"> <span class="author-name" mtid="10065786"><a href="/gui2/?type=authors&mode=browse&sel=10065786" target="_blank">Homa Gabor ✉ (<span class="authorship-author-name">Homa Gábor</span> <span class="authorAux-mtmt"> fizikus</span>) </a> </span> <span class="author-affil"><span title="HUN-REN Wigner Research Centre for Physics">HUN-REN WIGNER</span>/<span title="Institute for Solid State Physics and Optics">SZFI</span>/<span title="Department of Quantum Optics and Quantum Information">KKO</span>/Quantum Information and Complex Systems Group</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10101517"><a href="/gui2/?type=authors&mode=browse&sel=10101517" target="_blank">Hamar David ✉ (<span class="authorship-author-name">Hamar Dávid</span> <span class="authorAux-mtmt"> </span>) </a> </span> <span class="author-affil"><span title="Semmelweis University">SU</span>/<span title="Faculty of Pharmacy">FP</span>/Department of Pharmaceutics</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10085079"><a href="/gui2/?type=authors&mode=browse&sel=10085079" target="_blank">Bernad Jozsef Zsolt (<span class="authorship-author-name">Bernád József Zsolt</span> <span class="authorAux-mtmt"> fizikai tudományok</span>) </a> </span> <span class="author-affil"><span title="HUN-REN Wigner Research Centre for Physics">HUN-REN WIGNER</span>/<span title="Institute for Solid State Physics and Optics">SZFI</span>/Department of Quantum Optics and Quantum Information</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10000504"><a href="/gui2/?type=authors&mode=browse&sel=10000504" target="_blank">Adam Peter (<span class="authorship-author-name">Ádám Péter</span> <span class="authorAux-mtmt"> Kvantumoptika és kvantuminformatika</span>) </a> </span> <span class="author-affil"><span title="HUN-REN Wigner Research Centre for Physics">HUN-REN WIGNER</span>/<span title="Institute for Solid State Physics and Optics">SZFI</span>/<span title="Department of Quantum Optics and Quantum Information">KKO</span>/Quantum Information and Complex Systems Group; <span title="University of Pécs">UP</span>/<span title="Faculty of Sciences">FS</span>/<span title="Institute of Physics">IP</span>/Department of Theoretical Physics</span> ;&nbsp;&nbsp;&nbsp; <span class="author-name" mtid="10002242"><a href="/gui2/?type=authors&mode=browse&sel=10002242" target="_blank">Csordas Andras (<span class="authorship-author-name">Csordás András</span> <span class="authorAux-mtmt"> Fizika</span>) </a> </span> <span class="author-affil"><span title="Eötvös Loránd University">ELTE</span>/<span title="Faculty of Science">ELU FoS</span>/<span title="Institute of Physics and Astronomy">InstPhysicsAstro</span>/Department of Physics of Complex Systems</span> </div> </div> <div class="title"><a href="/gui2/?mode=browse&params=publication;36854040" target="_blank">An Exact Markovian Decoherence Dynamics of Two Interacting Harmonic Oscillators Coupled to a Bosonic Heat Bath</a></div> <div> <span class="journal-title">PROGRESS OF THEORETICAL AND EXPERIMENTAL PHYSICS</span> <span class="journal-issn">(<a target="_blank" href="https://portal.issn.org/resource/ISSN/2050-3911">2050-3911</a> <a target="_blank" href="https://portal.issn.org/resource/ISSN/2050-3911">2050-3911</a>)</span>: <span class="journal-volume">2025</span> <span class="journal-issue">12</span> <span class="page"> Paper 123A02. 28 p. </span> <span class="year">(2025)</span> </div> <div class="pub-footer"> <span class="language" xmlns="http://www.w3.org/1999/html">Language: English | </span> <span class="identifiers"> <span class="id identifier oa_GOLD" title=" Gold "> <a style="color:blue" title="10.1093/ptep/ptaf173" target="_blank" href="https://doi.org/10.1093/ptep/ptaf173"> DOI </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="001651578900001" target="_blank" href="https://www.webofscience.com/wos/woscc/full-record/001651578900001"> WoS </a> </span> <span class="id identifier oa_none" title="none"> <a style="color:blue" title="105026401280" target="_blank" href="http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-105026401280"> Scopus </a> </span> <span class="id identifier oa_NONE" title=" None "> <a style="color:blue" title="https://www.scopus.com/pages/publications/105026401280?origin=resultslist" target="_blank" href="https://www.scopus.com/pages/publications/105026401280?origin=resultslist"> Other URL </a> </span> </span> <OnlyViewableByAuthor><div class="ratings"> <div class="journal-subject">Journal subject: Scopus - Physics and Astronomy (miscellaneous)&nbsp;&nbsp;&nbsp;Rank:&nbsp;Q1</div> </div></OnlyViewableByAuthor> <div class="publication-citation" style="margin-left: 0.5cm;"> <span title="" class="citingPub-count">Citing papers: 1</span> | Independent citation: 1 | Self citation: 0 | Unknown citation: 0 | Number of citations in WoS: 1 | Number of citations in Scopus:&nbsp;1 | WoS/Scopus assigned:&nbsp;1 | Number of citations with DOI:&nbsp;1 </div> <div class="publication-citation"> <a target="_blank" href="/api/publication?cond=citations.related;eq;36854040&sort=publishedYear,desc&sort=title"> Number of cited publications: 8 </a> </div> <div class="mtid"><span class="long-pub-mtid">Publication: 36854040</span> | <span class="status-data status-VALIDATED"> Validated </span> Core Citing | <span class="type-subtype">Journal Article ( Article ) </span> | <span class="pub-category">Scientific</span> | <span class="publication-sourceOfData">WOS TAGGED</span> </div> <div class="funder"> (KKP133827) Funder: NRDIO, (2022–2.1.1-NL-2022-00004) Funder: NKFI, (K134437) </div> <div class="lastModified">Last Modified: 2026.07.15. 09:33 Annamária Boros (MTMT Központi admin) </div> <div class="lockedBy">Centrally managed 2026.06.26. 11:02 Annamária Boros (MTMT Központi admin) </div> </div></div>