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 10 of 10 for “"Non-equilibrium steady states"”.
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Monte Carlo analysis of non-equilibrium steady states and relaxation kinetics in driven lattice gases
… We also investigate the relaxation towards the non-equilibrium steady state in the two-time density-density auto-correlations, starting from strongly correlated initial conditions. We obtain simple aging scaling behavior in one, two, and three dimensions, with the expected power laws. We …
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Enhanced transport through confined channels by stationary and fluctuating potentials
… probabilities. Our method is applicable both to equilibrium systems and non-equilibrium steady states. Our method offers improved robustness when dealing with fragmented trajectories or small ensembles of data compared to other established approaches, such as probability density function and …
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Systems Driven out of Equilibrium with Energy Input at Interfaces or Boundaries
We study the non-equilibrium behavior of systems that are driven out of equilibrium from the interface. In the first part of this thesis, we study a model of a two-dimensional lattice gas that is in contact with two heat baths that are at different temperatures. Performing Monte Carlo simulations, …
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Analytic Results for Hopping Models with Excluded Volume Constraint
… is a Gaussian! We also show that the only nontrivial dimension where the walk is recurrent is d=2. As an application, we compute the expected energy shift caused by a Brownian vacancy in a model for an extreme anisotropic binary alloy. In the last chapter we present a Monte-Carlo study and …
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Steady State Properties of Some Driven Diffusive Systems
… of the properties and critical behavior of non-equilibrium systems, we investigate the steady state properties of three simple models, variations of the prototype, the driven Ising lattice gas. Our first system studied is the bilayer model, a stack of two driven Ising lattice gases allowed …
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Cooperative Behavior in Driven Lattice Systems with Shifted Periodic Boundary Conditions
… nature of driven stochastic lattice systems with non-periodic boundary conditions. The systems consist of particle and holes which move by exchanges of nearest neighbor particle-hole pairs. These exchanges are controlled by the energetics associated with an internal Hamiltonian, an external drive …
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Theoretical and Simulation Studies of a Driven Diffusive System
We explore steady-state properties of a driven lattice gas, which is a simple model of interacting many-particle systems, driven far from equilibrium by an external field. First, we study a system on a square lattice with periodic boundary conditions (PBC) along both principal lattice axes, while …
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Phase transitions in fluids and biological systems
… unifying features are the existences of global non-equilibrium steady states. I consider generic and statistical models for transitions between these global states, and I relate the model results with experimental data. A theme of this thesis is that these rather simple, minimal models are able …
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Non-Equilibrium Pattern Formation in Multi-Species Interacting Particle Systems
Non-equilibrium systems can form complex patterns in their steady states. Examples are systems consisting of self-propelled particles or systems consisting of particles driven away from equilibrium by external energy sources. In steady states, the interacting particles spontaneously organise into …
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Quantitative studies and Hydrodynamical limits for interacting particle systems
… to the mathematical study of microscopic non-equilibrium systems that were first introduced in order to derive macroscopic physical laws such as Fourier's law. In particular the main objective is to determine the scaling of the spectral gap, i.e. the relaxation rate, in terms of the number …