Browsing Fakultät für Physik (inkl. GAUSS) by Advisor & Referee "Heidrich-Meisner, Fabian Prof. Dr."
Now showing items 1-8 of 8
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Topological charge pumping in ultracold quantum gases
(2023-09-13)A topological charge pump is a one-dimensional, dynamical analogue of a quantum Hall system that is particularly well suited for studying topology, both theoretically and experimentally, since no synthetic gauge fields are ... -
Analytic studies on the SYK models: from instantaneous thermalization to holographic duality
(2023-07-18)The quasiparticle picture is so prominent in condensed matter physics that it is almost taken as an axiom. Without this simplification, the physics becomes nearly intractable. However, the physics also becomes remarkable, ... -
Orbital-order phase transition and non-adiabatic quantum-classical dynamics in strongly coupled electron-phonon systems
(2023-06-01)This thesis contributes to the investigation of solid-state systems with a strong coupling between electrons and the surrounding atomic lattice (phonons). One focus point of the thesis is the material class of $Pr_{1-x}C ... -
Microscopic foundation of the Eigenstate Thermalization Hypothesis
(2023-03-20)The Eigenstate Thermalization Hypothesis (ETH) explains how isolated quantum many-body systems thermalize by proposing that each energy eigenstate is already thermal. The hypothesis is believed to be essential to the ... -
Transport and dynamical properties of electron-phonon coupled systems
(2023-01-31)In this thesis, I investigate the transport and dynamical properties of electron-phonon coupled systems using numerical methods. I focus on the one-dimensional Holstein model, which incorporates both polaron and charge ... -
Transport and nonequilibrium dynamics in 1d many-body systems with bosonic degrees of freedom
(2021-12-03)In this thesis, different wave-function based numerical methods are used to study many-body systems with bosonic degrees of freedom in 1d. The main focus is on the Holstein model of spinless fermions, where ground-state ... -
Quantum quench dynamics in the transverse field Ising model of fully connected spins
(2021-04-06)The transverse field Ising model of N fully connected spins provides a mathematical accessible, yet non-trivial, system to investigate the non-thermal dynamics after a sudden quantum quench. The focus in this thesis is ... -
Fluctuational electrodynamics for nonlinear materials in and out of equilibrium
(2019-05-16)Fluctuational electrodynamics (FE) is a successful and well established theory. By making use of the fluctuation dissipation-theorem (FDT), it ties together the linear response (Green's function) and the strength of thermal ...