2026-09-20T08:30:56Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/46688 2023-07-11 col_2142_5131 col_2142_8859 com_2142_5130 com_2142_8858 com_2142_234

en Copyright 2013 Stanimir Kondov ultracold Fermion potassium Anderson metal-to-insulator transition Hubbard Ultracold fermionic atoms in disordered potentials text DeMarco, Brian L. Kwiat, Paul G. DeMarco, Brian L. Vishveshwara, Smitha Cooper, S. Lance Kondov, Stanimir 2014-01-16T17:59:07Z 2014-01-16T17:59:07Z 2013-12 2014-01-16T17:59:07Z 2013-12 This thesis describes the construction of an experimental apparatus to study disorder physics using ultracold fermionic atomic gases. We use this apparatus to realize 3D Anderson localization for the first time for quantum matter waves. We provide the first measurement of how the mobility edge—a hallmark of 3-dimensionality—and of localization lengths depend on the disorder strength. In a second experimental study, we add an optical lattice to the disorder potential to realize the disordered Fermi-Hubbard model, which is a minimal model for strongly correlated electronic solids. The interplay of interactions and disorder is investigated. We find an Anderson-like disorder-driven metal-to-insulator transition as well as disorder-induced breaking of the Mott gap in the strongly interacting regime. Item withdrawn by Laura Spradlin (lspradl2@illinois.edu) on 2013-10-31T18:30:15Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Kondov_Stanimir.pdf: 39543553 bytes, checksum: ee1b347f9596eec7c391df169e9b29bb (MD5) Made available in DSpace on 2014-01-16T17:59:07Z (GMT). No. of bitstreams: 2 Stanimir_Kondov.pdf: 39543553 bytes, checksum: ee1b347f9596eec7c391df169e9b29bb (MD5) license.txt: 4065 bytes, checksum: 622f27d9958345d792da8e0a0b244e41 (MD5) http://hdl.handle.net/2142/46688 Physics 1244 Physics 0240 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Physics -UIUC 10KS0240PHD