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AuthorRivas Vargas, Angeldc.contributor.author
Date of accession2016-03-15T06:23:42Zdc.date.accessioned
Available in OPARU since2016-03-15T06:23:42Zdc.date.available
Year of creation2011dc.date.created
AbstractIn the first part of this thesis we extensively review the general theory of open quantum systems. We introduce new approaches to describe, in a hopefully more transparent way, some aspects which are usually misleading in a broad range of the literature. In addition, we revise new concepts and methods developed in recent years that complement the general theory mainly developed in the 1970s. In the second part, we focus our attention on the so-called Markovian processes which have been described in the previous part. We study the validity of typical equations used in simple systems such as harmonic oscillators, and propose and check different strategies to describe Markovian dynamics in more complicated interacting systems. Finally we propose a counter-intuitive situation where some level of noise can be actually useful for information tasks. In the third and last part, we approach the problem of the non-Markovian description of open quantum systems. To quantify how non-Markovian an open quantum system is we introduce a computable measure and apply it to some relevant situations. We also propose a way of probing the complexity of an environment by visualizing properties of a pair of qubits embedded in it. In addition, we develop a technique based on orthogonal polynomial theory to transform a wide range of environments into simple chains of particles which can be efficiently simulated with numerical techniques.dc.description.abstract
Languageendc.language.iso
PublisherUniversität Ulmdc.publisher
LicenseStandard (Fassung vom 01.10.2008)dc.rights
Link to license texthttps://oparu.uni-ulm.de/xmlui/license_v2dc.rights.uri
KeywordDecoherencedc.subject
KeywordOpen quantum systemsdc.subject
Dewey Decimal GroupDDC 530 / Physicsdc.subject.ddc
LCSHOpen systems: Physicsdc.subject.lcsh
LCSHQuantum theorydc.subject.lcsh
TitleOpen quantum systems and quantum information dynamicsdc.title
Resource typeDissertationdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-1901dc.identifier.doi
PPN656520310dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-75817dc.identifier.urn
GNDOffenes Systemdc.subject.gnd
GNDQuanteninformatikdc.subject.gnd
GNDQuantentheoriedc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
Date of activation2011-03-25T10:34:23Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
Shelfmark print versionZ: J-H 14.096; W: W-H 12.560uulm.shelfmark
DCMI TypeTextuulm.typeDCMI
VTS ID7581uulm.vtsID
CategoryPublikationenuulm.category
Bibliographyuulmuulm.bibliographie


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