INTERACTING PHOTONS IN CIRCUIT QUANTUM ELECTRODYNAMICS: DECAY OF THE COLLECTIVE PHASE MODE IN ONE-DIMENSIONAL JOSEPHSON JUNCTION ARRAYS DUE TO QUANTUM PHASE-SLIP FLUCTUATIONS

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dc.contributor.advisorManucharyan, Vladimiren_US
dc.contributor.authorGrabon, Nicholas Christopheren_US
dc.contributor.departmentPhysicsen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.date.accessioned2021-02-14T06:38:11Z
dc.date.available2021-02-14T06:38:11Z
dc.date.issued2020en_US
dc.description.abstractLight does not typically scatter light, as witnessed by the linearity of Maxwell’s equations. In this work, we demonstrate two superconducting circuits, in which microwave photons have well-defined energy and momentum, but their lifetime is finite due to decay into lower energy photons. The circuits we present are formed with Josephson junction arrays where strong quantum phase-slip fluctuations are present either in all of the junctions or in only a single junction. The quantum phase-slip fluctuations are shown to result in the strong inelastic photon-photon interaction observed in both circuits. The phenomenon of a single photon decay provides a new way to study multiple long-standing many-body problems important for condensed matter physics. The examples of such problems, which we cover in this work include superconductor to insulator quantum phase transition in one dimension and a general quantum impurity problem. The photon lifetime data can be treated as a rare example of a verified and useful quantum many-body simulation.en_US
dc.identifierhttps://doi.org/10.13016/j0yx-yehe
dc.identifier.urihttp://hdl.handle.net/1903/26836
dc.language.isoenen_US
dc.subject.pqcontrolledQuantum physicsen_US
dc.subject.pquncontrolledJosephson junctionen_US
dc.subject.pquncontrolledquantumen_US
dc.subject.pquncontrolledquantum computingen_US
dc.subject.pquncontrolledquantum phase transitionen_US
dc.subject.pquncontrolledqubitsen_US
dc.subject.pquncontrolledsuperconductingen_US
dc.titleINTERACTING PHOTONS IN CIRCUIT QUANTUM ELECTRODYNAMICS: DECAY OF THE COLLECTIVE PHASE MODE IN ONE-DIMENSIONAL JOSEPHSON JUNCTION ARRAYS DUE TO QUANTUM PHASE-SLIP FLUCTUATIONSen_US
dc.typeDissertationen_US

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