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[{"key": "dc.contributor.advisor", "value": "Massel, Francesco", "language": null, "element": "contributor", "qualifier": "advisor", "schema": "dc"}, {"key": "dc.contributor.author", "value": "Manninen, Juuso", "language": null, "element": "contributor", "qualifier": "author", "schema": "dc"}, {"key": "dc.date.accessioned", "value": "2016-12-15T07:45:04Z", "language": null, "element": "date", "qualifier": "accessioned", "schema": "dc"}, {"key": "dc.date.available", "value": "2016-12-15T07:45:04Z", "language": null, "element": "date", "qualifier": "available", "schema": "dc"}, {"key": "dc.date.issued", "value": "2016", "language": null, "element": "date", "qualifier": "issued", "schema": "dc"}, {"key": "dc.identifier.other", "value": "oai:jykdok.linneanet.fi:1644522", "language": null, "element": "identifier", "qualifier": "other", "schema": "dc"}, {"key": "dc.identifier.uri", "value": "https://jyx.jyu.fi/handle/123456789/52364", "language": null, "element": "identifier", "qualifier": "uri", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Yksik\u00e4\u00e4n kvanttisysteemi ei voi olla t\u00e4ysin eristetty ymp\u00e4rist\u00f6st\u00e4\u00e4n, mik\u00e4 johtaa informaation v\u00e4littymiseen systeemin ja ymp\u00e4rist\u00f6n v\u00e4lill\u00e4.\n\nOptomekaniikassa, miss\u00e4 tyypillinen tutkittava systeemi on peileist\u00e4 koostuva optinen kaviteetti yhdistettyn\u00e4 mekaaniseen v\u00e4r\u00e4htelij\u00e4\u00e4n, systeemin ja ymp\u00e4rist\u00f6n lineaarisesta\nkytkenn\u00e4st\u00e4 johtuvat dissipaatioilmi\u00f6t ovat hyvin tunnettuja. Ep\u00e4lineaarisia ilmi\u00f6it\u00e4 ei kuitenkaan ymm\u00e4rret\u00e4 yht\u00e4 laajasti.\n\nTutkin ep\u00e4lineaarista kytkent\u00e4\u00e4 kaviteetin ja l\u00e4mp\u00f6kylvyn v\u00e4lill\u00e4 ja havainnollistan\nt\u00e4st\u00e4 kytkenn\u00e4st\u00e4 johtuvia ilmi\u00f6it\u00e4 kuten ep\u00e4lineaarista dissipaatiota. Esit\u00e4n my\u00f6s\noptisen kaviteetin ep\u00e4lineaarisen dissipaation oikeuttavan mallin, miss\u00e4 optinen kaviteetti ja l\u00e4mp\u00f6kylpy vuorovaikuttavat kaksitilasysteemien kanssa.\n\nAntaakseni t\u00e4m\u00e4n ty\u00f6n tuloksille kontekstia, sis\u00e4llyt\u00e4n pohjustavat katsaukset optomekaniikkaan, avoimiin kvanttisysteemeihin ja kaksitilasysteemeihin sek\u00e4 n\u00e4iden aihealueiden tutkimiseen k\u00e4ytett\u00e4viin menetelmiin. Esit\u00e4n my\u00f6s esimerkkilaskuja yksinkertaistetuista malleista ja lis\u00e4ksi johdan kaikki t\u00e4ss\u00e4 ty\u00f6ss\u00e4 k\u00e4ytetyt menetelm\u00e4t\nmahdollisimman pedagogisen l\u00e4hesymistavan saavuttamiseksi.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "A quantum system cannot be completely isolated from its environment, meaning that information is transmitted between them.\n\nIn optomechanics, where a typical system under study is an optical cavity consisting of\nhighly reflective mirrors coupled with a mechanical resonator, dissipation phenomena\nrelated to linear system-environment coupling are well known. However, nonlinear phenomena are not understood to the same extent.\n\nI consider a nonlinear coupling between a cavity and a heat bath, and illustrate the\neffects of this coupling such as nonlinear dissipation of the cavity. I also propose\na model, where an optical cavity and a heat bath interact with two-level systems,\njustifying nonlinear dissipation for the optical cavity.\n\nTo give some context to the results of this work, I include introductory reviews of optomechanics, open quantum systems, and two-level systems together with the methods\nused to study these topics. I also provide some calculations of simplified setups as well\nas full derivations of the methods used in this work for a more pedagogical approach.", "language": "en", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted using Plone Publishing form by Juuso Manninen (juumatma) on 2016-12-15 07:45:04.022299. Form: Pro gradu -lomake (https://kirjasto.jyu.fi/julkaisut/julkaisulomakkeet/pro-gradu-lomake). JyX data: [jyx_publishing-allowed (fi) =True]", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Submitted by jyx lomake-julkaisija (jyx-julkaisija.group@korppi.jyu.fi) on 2016-12-15T07:45:04Z\nNo. of bitstreams: 2\nURN:NBN:fi:jyu-201612155106.pdf: 1093251 bytes, checksum: 543991c6081d2b10d0e3907b8ce521a8 (MD5)\nlicense.html: 4807 bytes, checksum: 92fb4d7be0dc18f94a2e02652898c770 (MD5)", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.description.provenance", "value": "Made available in DSpace on 2016-12-15T07:45:04Z (GMT). No. of bitstreams: 2\nURN:NBN:fi:jyu-201612155106.pdf: 1093251 bytes, checksum: 543991c6081d2b10d0e3907b8ce521a8 (MD5)\nlicense.html: 4807 bytes, checksum: 92fb4d7be0dc18f94a2e02652898c770 (MD5)\n Previous issue date: 2016", "language": "en", "element": "description", "qualifier": "provenance", "schema": "dc"}, {"key": "dc.format.extent", "value": "1 verkkoaineisto (64 sivua)", "language": null, "element": "format", "qualifier": "extent", "schema": "dc"}, {"key": "dc.format.mimetype", "value": "application/pdf", "language": null, "element": "format", "qualifier": "mimetype", "schema": "dc"}, {"key": "dc.language.iso", "value": "eng", "language": null, "element": "language", "qualifier": "iso", "schema": "dc"}, {"key": "dc.rights", "value": "In Copyright", "language": "en", "element": "rights", "qualifier": null, "schema": "dc"}, {"key": "dc.subject.other", "value": "kvanttisysteemit", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "optomekaniikka", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "optomechanics", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "open quantum systems", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "nonlinear dissipation", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "input-output formalism", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Master equation", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.subject.other", "value": "Schrieffer-Wolff transformation", "language": null, "element": "subject", "qualifier": "other", "schema": "dc"}, {"key": "dc.title", "value": "Nonlinear dissipation phenomena in optomechanics", "language": null, "element": "title", "qualifier": null, "schema": "dc"}, {"key": "dc.type", "value": "master thesis", "language": null, "element": "type", "qualifier": null, "schema": "dc"}, {"key": "dc.identifier.urn", "value": "URN:NBN:fi:jyu-201612155106", "language": null, "element": "identifier", "qualifier": "urn", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Pro gradu -tutkielma", "language": "fi", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.type.ontasot", "value": "Master\u2019s thesis", "language": "en", "element": "type", "qualifier": "ontasot", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Matemaattis-luonnontieteellinen tiedekunta", "language": "fi", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.faculty", "value": "Faculty of Sciences", "language": "en", "element": "contributor", "qualifier": "faculty", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Fysiikan laitos", "language": "fi", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.department", "value": "Department of Physics", "language": "en", "element": "contributor", "qualifier": "department", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "University of Jyv\u00e4skyl\u00e4", "language": "en", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.contributor.organization", "value": "Jyv\u00e4skyl\u00e4n yliopisto", "language": "fi", "element": "contributor", "qualifier": "organization", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Teoreettinen fysiikka", "language": "fi", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.subject.discipline", "value": "Theoretical Physics", "language": "en", "element": "subject", "qualifier": "discipline", "schema": "dc"}, {"key": "dc.date.updated", "value": 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