Rydberg Molecules and Polarons in Ultracold Strontium Gases

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dc.contributor.advisorKillian, Thomas Cen_US
dc.creatorCamargo, Franciscoen_US
dc.date.accessioned2019-05-16T20:17:46Zen_US
dc.date.available2019-05-16T20:17:46Zen_US
dc.date.created2017-08en_US
dc.date.issued2017-08-07en_US
dc.date.submittedAugust 2017en_US
dc.date.updated2019-05-16T20:17:46Zen_US
dc.description.abstractIn this work I describe the excitation spectra of Rydberg atoms in ultracold gases of strontium and their decay mechanisms. In a few-body regime, we observe a highly structured spectrum re ecting excitation of ultralong-range molecules consisting of one or more ground-state atoms bound to the Rydberg core in potential wells formed by the Rydbergelectron wave function. In a many-body regime, with hundreds of ground-state atoms within the Rydberg orbital, the Rydberg atoms can be viewed as an impurity in a quantum gas, connecting to important concepts in condensed matter physics. The spectrum for impurity excitation displays signatures of polaronic states, in which the Rydberg atom signi cantly perturbs the density of the background gas. Additionally, decay channels of Rydberg excitations are examined by monitoring the time evolution of Rydberg populations. The measured lifetimes reveal new information on the decay processes of Rydberg molecules and place limits on the time scales over which studies involving Rydberg species in cold, dense atomic gases can be undertaken and limit the coherence times for such measurements.en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationCamargo, Francisco. "Rydberg Molecules and Polarons in Ultracold Strontium Gases." (2017) Diss., Rice University. <a href="https://hdl.handle.net/1911/105495">https://hdl.handle.net/1911/105495</a>.en_US
dc.identifier.urihttps://hdl.handle.net/1911/105495en_US
dc.language.isoengen_US
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.en_US
dc.subjectstrontiumen_US
dc.subjectatomsen_US
dc.subjectultracolden_US
dc.subjectgasen_US
dc.subjectBECen_US
dc.subjectpolaronen_US
dc.subjectrydbergen_US
dc.subjectmoleculeen_US
dc.titleRydberg Molecules and Polarons in Ultracold Strontium Gasesen_US
dc.typeThesisen_US
dc.type.materialTexten_US
thesis.degree.departmentPhysics and Astronomyen_US
thesis.degree.disciplineNatural Sciencesen_US
thesis.degree.grantorRice Universityen_US
thesis.degree.levelDoctoralen_US
thesis.degree.nameDoctor of Philosophyen_US
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