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AuthorPoschinger, Ulrichdc.contributor.author
Date of accession2016-03-15T06:23:41Zdc.date.accessioned
Available in OPARU since2016-03-15T06:23:41Zdc.date.available
Year of creation2010dc.date.created
AbstractThis dissertation describes a prototype experiment aiming at the realization of scalable quantum information. The essential feature is the usage of a novel microstructured ion trap derived from the Paul trap. It allows for storing and manipulating a large number of ions, as compared to conventional linear Paul traps. This thesis describes how the way is paved towards the realization of quantum information experiments in this ion trap. An analysis of the electrostatic properties of the ion trap is presented, which is laying the foundation for understanding the limits of confinement stability and effects beyond standard Paul trap behavior. The focus of this work lies on the realization and characterization of single and dual qubit operations, which are achieved by means of (semiclassical) atom-light interaction. In our experiment, the qubit is implemented in the Zeeman sublevels of the ion’s ground state, i.e. in the spin of the bright electron of a 40Ca+ ion. The main body of this thesis then describes the realization of the necessary steps of preparation, manipulation and readout of this qubit. The preparation includes optical pumping and cooling close to the motional quantum ground state by means of sideband cooling. Several possible techniques for these steps are tested and analyzed. Coherent manipulations are carried out by means of stimulated Raman transitions. Here, a strong emphasis is put on the characterization of the various decoherence mechanisms, which are dominated by the motional excitation of the ion due to thermalization of the ion with the trap electrodes, and by imperfections in the ion-laser interactions. As by-product of the latter investigation, a new measurement scheme for the experimental determination of atomic dipole matrix elements is presented.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
KeywordEntanglementdc.subject
Dewey Decimal GroupDDC 530 / Physicsdc.subject.ddc
LCSHIon trappingdc.subject.lcsh
LCSHQuantum computingdc.subject.lcsh
LCSHQuantum opticsdc.subject.lcsh
LCSHSchrödinger's catdc.subject.lcsh
TitleQuantum optics experiments in a microstructured ion trapdc.title
Resource typeDissertationdc.type
DOIhttp://dx.doi.org/10.18725/OPARU-1898dc.identifier.doi
PPN661531260dc.identifier.ppn
URNhttp://nbn-resolving.de/urn:nbn:de:bsz:289-vts-75695dc.identifier.urn
GNDQuantenoptikdc.subject.gnd
FacultyFakultät für Naturwissenschaftenuulm.affiliationGeneral
Date of activation2011-04-18T13:57:33Zuulm.freischaltungVTS
Peer reviewneinuulm.peerReview
Shelfmark print versionZ: J-H 13.972; W: W-H 12.438uulm.shelfmark
DCMI TypeTextuulm.typeDCMI
VTS-ID7569uulm.vtsID
CategoryPublikationenuulm.category
University Bibliographyjauulm.unibibliographie


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