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Title: Fermionic Lithium in an Optical Lattice
Authors: Stone, Mark
Advisors: Bakr, Waseem S.
Contributors: Romalis, Michael V.
Department: Physics
Class Year: 2015
Abstract: This thesis describes the construction of an apparatus to study strongly-interacting fermionic lithium-6 in an optical lattice. The nal system will include a quantum gas microscope capable of single-site resolution imaging, which will enable direct measurement of correlation statistics and magnetic ordering in many-body quantum systems. An accordion lattice with dynamically adjustable periodicity will create a single monolayer of a 2D Fermi gas, allowing observation of fully 2D Fermi-Hubbard physics. The theoretical background for realizing this 2D regime is discussed. In addition, a method for realizing fermions in a topologically non-trivial band structure is examined. Onsite rotation simulating a Zeeman orbital Hamiltonian is used to explicitly break time-reversal symmetry. In the band structure of the e ective Floquet Hamiltonian, gaps open up at the topologically protected quadratic band crossings. This would allow the preparation of topological insulators in this system.
Extent: 80 pages
Type of Material: Princeton University Senior Theses
Language: en_US
Appears in Collections:Physics, 1936-2023

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