Dokumente Fakultät für Physik (inkl. GAUSS) nach Gutachter "Kree, Reiner Prof. Dr."
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Aspects of Signal Processing in Noisy Neurons
(2001-11-06)It has become clear in recent years that stochastic effects, commonly known as noise, do not necessarily impede signal processing, but may actually serve to enhance it. The effect is known ... -
Biomembranen an Grenzflächen und in synaptischer Geometrie
(2001-02-22)Inhomogeneous distributions of ion channels are ubiquitous in biological membranes and important for many biological functions. Therefore many theoretical models have been set up, which try ... -
Collective Dynamics in Networks of Pulse-Coupled Oscillators
(2003-02-25)Pulse-coupled oscillators constitute a paradigmatic class of dynamical systems interacting on networks. They model a variety of natural systems including earthquakes, flashing fireflies and ... -
Conformational Dynamics of Living Polymers
(2018-07-11)Polymerization is outstanding among chemical reaction processes due to its importance for technical applications as well as for an understanding of complex processes in living matters. In this thesis, we have studied the ... -
Criticality and sampling in neural networks
(2021-02-25)The brain is made of billions of functional units that interact and give raise to its collective properties. The criticality hypothesis states that many these properties emerge due to brain dynamics operating at the critical ... -
Dense Granular Fluids and the Granular Glass Transition
(2011-11-17)Driven granular fluids at finite density are investigated theoretically and numerically for nontrivial correlations and for the formation of an dynamically arrested, amorphous, i.e., glassy ... -
Dephasing and phase-coherence in disordered mesoscopic conductors
(2001-11-07)In the first part of this thesis a novel Eikonal approach to calculate the dephasing time in disordered conductors is presented. The applied method has, compared to earlier calculations, the advantage that it does not ... -
Directional sensing and chemotaxis in eukaryotic cells - a quantitative study
(2011-09-22)We investigate the mechanisms behind eukaryotic chemotaxis using the model organism Dictyostelium discoideum. We propose a theoretical model of directional sensing based on a local ... -
Dual Fermion Approach to Disordered Correlated Systems
(2015-11-05)Disorder is ubiquitous in real materials and influences the physical properties like the conductivity to varying degrees. If electron-electron interactions are strong, theoretical and numerical treatment of these systems ... -
Dynamic Responses of Networks under Perturbations: Solutions, Patterns and Predictions
(2018-05-31)External perturbations are omnipresent in the dynamics of oscillator networks across biology, physics and engineering. How such networks dynamically respond to fluctuating perturbation signals fundamentally underlies their ... -
Dynamics of Complex Flow Networks
(2019-01-28)Flow networks consist of individual units called nodes connected by edges transporting flows of some quantity – such as electricity, water or cars. Each of us encounters more than one flow network every day. They form ... -
Dynamics of isolated quantum many-body systems far from equilibrium
(2018-01-22)This thesis addresses different aspects of the dynamics of isolated quantum many-body systems far from equilibrium, ranging from transient phenomena at short times to questions about relaxation and equilibration at late ... -
Dynamics of Population Coding in the Cortex
(2005-08-19)In this thesis, I investigate the action potential (AP) initiation dynamics in cortical neurons and its consequences for dynamical population coding in the cortex.In chapter 3, I assess the ... -
Einfache Modelle für komplexe Biomembranen
(2003-10-22)Biomembranes are complex two-dimensional fluids consisting of proteins and lipids. In this work, simple molecular models are developed, applied and discussed to describe the thermodynamic ... -
Elasticity of basic structural element in anisotropic macromolecular networks
(2016-09-27)Semiflexible filaments are abundant in biological materials. From cells to the extracellular environment, these kind of filaments are found. They are important for many biological organizations and processes. The maintenance ... -
Elastizität von vernetzten semiflexiblen Biopolymersystemen
(2015-06-29)In eukaryotic cells biopolymers such as actin filaments can arrange in various ways due to actin binding proteins, and for many cellular processes such biopolymers are of crucial importance. In this thesis, two different ... -
Energy dissipation and transport in polymeric switchable nanostructures via a new energy-conserving Monte-Carlo scheme
(2018-04-13)Polymers are materials that are widely used in industry. The advantages of polymers are their comparatively simple possibility of processing, e.g, injection moulding processes, 3D printers, and self-assembly. Polymers ... -
Entropic Motors
(2014-03-06)Asymmetric test particles can rectify thermal fluctuations of impinging particles, if the test particles are not in equilibrium with their environment. Due to this rectification, these test particles are called Brownian ... -
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 ...