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Transport and nonequilibrium dynamics in 1d many-body systems with bosonic degrees of freedom

dc.contributor.advisorHeidrich-Meisner, Fabian Prof. Dr.
dc.contributor.authorStolpp, Jan Felix
dc.date.accessioned2021-12-03T13:31:32Z
dc.date.available2021-12-11T00:50:04Z
dc.date.issued2021-12-03
dc.identifier.urihttp://hdl.handle.net/21.11130/00-1735-0000-0008-59B5-8
dc.identifier.urihttp://dx.doi.org/10.53846/goediss-8867
dc.language.isoengde
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddc530de
dc.titleTransport and nonequilibrium dynamics in 1d many-body systems with bosonic degrees of freedomde
dc.typedoctoralThesisde
dc.contributor.refereeHeidrich-Meisner, Fabian Prof. Dr.
dc.date.examination2021-03-12
dc.subject.gokPhysik (PPN621336750)de
dc.description.abstractengIn this thesis, different wave-function based numerical methods are used to study many-body systems with bosonic degrees of freedom in 1d. The main focus is on the Holstein model of spinless fermions, where ground-state phases, nonequilibrium dynamics, and thermalization are investigated. Using matrix-product-state methods for the investigation of such models with electron-phonon coupling poses special numerical challenges. Local basis optimization, projected purification, and subspace expansion are used to overcome these challenges.de
dc.contributor.coRefereeJeckelmann, Eric Prof. Dr.
dc.subject.engTheoretical physicsde
dc.subject.engSolid-state physicsde
dc.subject.engMany-body systemsde
dc.subject.engDMRGde
dc.subject.engMPSde
dc.subject.engLocal basis optimizationde
dc.subject.engHolstein modelde
dc.subject.engElectron-phonon couplingde
dc.identifier.urnurn:nbn:de:gbv:7-21.11130/00-1735-0000-0008-59B5-8-0
dc.affiliation.instituteFakultät für Physikde
dc.description.embargoed2021-12-11
dc.identifier.ppn1780256485


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