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Please use this identifier to cite or link to this item: http://arks.princeton.edu/ark:/88435/dsp01xg94hs46c
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dc.contributor.advisorBakr, Waseem-
dc.contributor.authorBrown, Peter Thomas-
dc.contributor.otherPhysics Department-
dc.date.accessioned2020-07-13T02:19:10Z-
dc.date.available2020-07-13T02:19:10Z-
dc.date.issued2019-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/dsp01xg94hs46c-
dc.description.abstractThe recent development of fermionic quantum gas microscopes has enabled studies of cold atom Fermi-Hubbard systems with single-site resolution, revealing a variety of interesting phenomena in regimes which are difficult to access with existing theory techniques. The Fermi-Hubbard model is of great intrinsic interest as a toy model for strongly correlated quantum physics, and may also describe the phenomenology of high-temperature superconducting materials such as the cuprates. Most experimental studies of cold atom Fermi-Hubbard systems have focused on probing equal-time spin and density correlations, but a wide region of the low temperature phase diagram may be better understood by exploring dynamical (unequal-time) properties. In this thesis, we first report on an experiment exploring the response of antiferromagnetic spin correlations to a magnetic field, and find evidence for short-range canted antiferromagnetic spin correlations. Then we turn our focus to probing response functions associated with unequal-time correlations relevant for understanding the pseudogap and strange metal regimes of Fermi-Hubbard systems. First, we describe the development of a technique to measure microscopic diffusion, and hence resistivity, in doped Mott insulators. We find that this resistivity exhibits a linear dependence on temperature and violates the Mott-Ioffe-Regel limit, two signatures of strange metallic behavior. Next, we report on the development of angle-resolved photoemission spectroscopy (ARPES) compatible with quantum gas microscopy and its application to studying pseudogap physics in an attractive Fermi-Hubbard system across the BEC-BCS crossover, setting the stage for future studies of the pseudogap regime in repulsive Hubbard systems.-
dc.language.isoen-
dc.publisherPrinceton, NJ : Princeton University-
dc.relation.isformatofThe Mudd Manuscript Library retains one bound copy of each dissertation. Search for these copies in the library's main catalog: <a href=http://catalog.princeton.edu> catalog.princeton.edu </a>-
dc.subjectHubbard model-
dc.subjectlithium-
dc.subjectquantum gas microscopy-
dc.subjectquantum simulation-
dc.subjectstrange metal-
dc.subjectultracold atoms-
dc.subject.classificationPhysics-
dc.subject.classificationAtomic physics-
dc.subject.classificationQuantum physics-
dc.titleProbing dynamical quantities in the 2D Fermi-Hubbard model with quantum gas microscopy-
dc.typeAcademic dissertations (Ph.D.)-
Appears in Collections:Physics

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