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dc.contributor.advisorLukin, Mikhailen_US
dc.contributor.authorKómár, Péteren_US
dc.date.accessioned2016-04-21T18:07:03Z
dc.date.created2016-03en_US
dc.date.issued2015-12-14en_US
dc.date.submitted2016en_US
dc.identifier.citationKómár, Péter. 2016. Quantum Information Science and Quantum Metrology: Novel Systems and Applications. Doctoral dissertation, Harvard University, Graduate School of Arts & Sciences.en_US
dc.identifier.urihttp://nrs.harvard.edu/urn-3:HUL.InstRepos:26718726
dc.description.abstractThe current frontier of our understanding of the physical universe is dominated by quantum phenomena. Uncovering the prospects and limitations of acquiring and processing information using quantum effects is an outstanding challenge in physical science. This thesis presents an analysis of several new model systems and applications for quantum information processing and metrology. First, we analyze quantum optomechanical systems exhibiting quantum phenomena in both optical and mechanical degrees of freedom. We investigate the strength of non-classical correlations in a model system of two optical and one mechanical mode. We propose and analyze experimental protocols that exploit these correlations for quantum computation. We then turn our attention to atom-cavity systems involving strong coupling of atoms with optical photons, and investigate the possibility of using them to store information robustly and as relay nodes. We present a scheme for a robust two-qubit quantum gate with inherent error-detection capabilities. We consider several remote entanglement protocols employing this robust gate, and we use these systems to study the performance of the gate in practical applications. Finally, we present a new protocol for running multiple, remote atomic clocks in quantum unison. We show that by creating a cascade of independent Greenberger-Horne-Zeilinger states distributed across the network, the scheme asymptotically reaches the Heisenberg limit, the fundamental limit of measurement accuracy. We propose an experimental realization of such a network consisting of neutral atom clocks, and analyze the practical performance of such a system.en_US
dc.description.sponsorshipPhysicsen_US
dc.format.mimetypeapplication/pdfen_US
dc.language.isoenen_US
dash.licenseLAAen_US
dc.subjectPhysics, Atomicen_US
dc.subjectPhysics, Theoryen_US
dc.titleQuantum Information Science and Quantum Metrology: Novel Systems and Applicationsen_US
dc.typeThesis or Dissertationen_US
dash.depositing.authorKómár, Péteren_US
dc.date.available2016-04-21T18:07:03Z
thesis.degree.date2016en_US
thesis.degree.grantorGraduate School of Arts & Sciencesen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
dc.contributor.committeeMemberDoyle, Johnen_US
dc.contributor.committeeMemberSachdev, Subiren_US
dc.type.materialtexten_US
thesis.degree.departmentPhysicsen_US
dash.identifier.vireohttp://etds.lib.harvard.edu/gsas/admin/view/705en_US
dc.description.keywordsQuantum information; Quantum metrologyen_US
dash.author.emailpeter.komar.hu@gmail.comen_US
dash.identifier.drsurn-3:HUL.DRS.OBJECT:26752202en_US
dash.contributor.affiliatedKomar, Peter


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