<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems"^^ . "In this thesis, we study the thermalization properties in both closed and periodically driven systems subject to spatial inhomogeneities. In Part 1, we focus on long-range Heisenberg spin models of spatially disordered spins which can be realized experimentally by current state-of-the-art platforms. We find numerically that the disordered couplings induced by the randomly positioned spins can lead to a many-body localized regime. Using perturbative arguments based on the real-space renormalization group, we demonstrate that the emergent quasi-conserved quantities arise from pairs of strongly interacting spins decoupling from their environment. Predictions from the resulting effective model of pairs are compared to real experimental data from a Rydberg quantum simulator for validation and are found to be highly accurate. In Part 2, we shift our focus to periodically driven systems which are known to exhibit long-lived (meta-)stable states under certain conditions. Specifically, we consider an ordered Ising chain subject to a driving field of varying strength across different parts of the chain. We demonstrate that a configuration where the driving field has the same strength for all spins except one can dramatically prolong time-crystalline signatures. We link this behavior to the presence of approximate conservation laws stabilized by the spatial inhomogeneity. Additionally, we present preliminary results on the possibility to create a time crystal by driving the pair model derived in the first part."^^ . "2024" . . . . . . . "Adrian Lukas"^^ . "Braemer"^^ . "Adrian Lukas Braemer"^^ . . . . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (PDF)"^^ . . . "main_twoside.pdf"^^ . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Quantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #35657 \n\nQuantum dynamics of disordered many-body spin systems : effects of spatial disorder in a dipolar, frozen gas and influence of spatial inhomogeneity in periodically driven systems\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .