New Frontiers in Quantum Simulation of an Extended Dicke Model and Active Cooling

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dc.contributor.advisorKono, Junichiroen_US
dc.creatorMarquez Peraca, Nicolasen_US
dc.date.accessioned2023-09-01T20:42:17Zen_US
dc.date.created2023-08en_US
dc.date.issued2023-08-08en_US
dc.date.submittedAugust 2023en_US
dc.date.updated2023-09-01T20:42:17Zen_US
dc.description.abstractGroundbreaking discoveries in the fields of light-matter interactions and thermoelectrics in the past two decades have profoundly shaped our understanding of how photons, electrons, and phonons interact. Increased control over the quality of engineered systems, novel measurement techniques, and quantitative improvements in theory are the driving force behind modern, record-high values of light-matter coupling strength and thermoelectric performance. In this work, I bring together experimental and theoretical techniques to study the interplay between magnons and spins in ErFeO3, photons and plasmons in Fischer nanostructures, and electrons and phonons in thermoelectric active cooling materials. Specifically, I perform terahertz time-domain magneto-spectroscopy measurements on the rare-earth orthoferrite ErFeO3 as a function of temperature and magnetic field, and we propose a novel protocol that uses this material as a solid-state quantum simulator of an extended Dicke model. Then, I conduct aperture-based scanning near-field optical microscopy measurements on Fischer nanostructures, and observe field enhancement and localization with resolution beyond the diffraction limit. Lastly, I study active cooling under arbitrary external thermal resistances, and map out the regions where active cooling is advantageous compared to Carnot-limit refrigeration. These results lead to a deeper understanding of fundamental interactions in magnetic, semiconducting, and low-dimensional materials, and further motivate translating research into engineering solutions.en_US
dc.embargo.lift2024-02-01en_US
dc.embargo.terms2024-02-01en_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationMarquez Peraca, Nicolas. "New Frontiers in Quantum Simulation of an Extended Dicke Model and Active Cooling." (2023) Diss., Rice University. https://hdl.handle.net/1911/115270.en_US
dc.identifier.urihttps://hdl.handle.net/1911/115270en_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.subjecterbium orthoferriteen_US
dc.subjectterahertz magneto-spectroscopyen_US
dc.subjectFischer nanostructuresen_US
dc.subjectscanning near-field optical microscopyen_US
dc.subjectthermoelectricsen_US
dc.subjectactive coolingen_US
dc.titleNew Frontiers in Quantum Simulation of an Extended Dicke Model and Active Coolingen_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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