Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"quantum spin models"”.
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Spectral and dynamical properties of disordered and noisy quantum spin models
… and dynamical characteristics of certain quantum spin systems in the presence of either I) quenched disorder, or II) dynamical noise. In the first part, the quantum random energy model (QREM), a mean-field spin glass model with a many-body localisation transition, is studied. In Chapter 2, …
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Realizing quantum spin models with ⁷Li atoms in an optical lattice
Quantum spin Hamiltonians are paradigmatic models, which display different kinds of quantum phase transitions, strongly-correlated and topological ground states, and various regimes of transport. Expanding their significance, many mappings exist between quantum spin models and other systems in …
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Studies of Topology and Order in Frustrated Spin Systems
… between topology and order in frustrated quantum spin systems. We identify the relevant effects in the study of novel phases of matter, as they emerge in tractable quantum spin models, and we make several original contributions. In this dissertation, (a) we study quantum dimer models with …
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Quantum Simulation of Spin-1 Physics with Bosons in Optical Lattice
… many-body physics. A topic at the frontier of quantum simulation with Mott insulators is the study of quantum spin models, which are intimately connected to other modern research topics such as the study of quantum phase transitions and quantum thermalization. While quantum spin models are also …
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Controlling exciton dimensionality in novel transition-metal dichalcogenide platforms
… Broken inversion symmetry, along with strong spin-orbit interaction, leads to coupling of the spin and valley degrees of freedom, allowing for valley-selective optical transitions. First, I confine long-lived interlayer excitons in WSe<sub>2</sub>/WS<sub>2</sub> heterobilayers to zero …