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.
Results
Showing 1 to 10 of 10 for “"Critical Dynamics"”.
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CRITICAL DYNAMICS OF LIQUID CRYSTAL ABOVE THE ISOTROPIC - NEMATIC PHASE TRANSITION
Dynamics of liquid crystals above the isotropic-nematic phase transition point is studied. The phase transition is of first-order, but nearly critical. Near the transition point the correlation length (zeta) of molecular orientational order could be comparable to the inverse of a light scattering …
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Critical dynamics of active phase separation: A scalar field theory approach
This thesis studies the critical properties of several systems under the overarching theme of active matter. These are systems that constantly consume energy at particle level and transform it into motion. Several field theories have been proposed as continuum descriptions of isotropic systems of …
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A General Study of the Complex Ginzburg-Landau Equation
… renormalization group method to investigate the critical dynamics near the continuous non-equilibrium transition limit in this equation with additive noise. Due to the fact that time translation invariance is broken following a critical quench from a random initial configuration, an independent …
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Modeling phase synchronization of interacting neuronal populations : from phase reductions to collective behavior of oscillatory neural networks
… phase reduction techniques to distill the phase dynamics from complex oscillatory networks. In Chapter 3 I apply them to networks of weakly coupled Brusselators and of Wilson-Cowan neural masses. Numerical and analytical approaches are compared against each other and their sensitivity to …
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Some Aspects of Fluctuation Driven Phenomena
… scenarios: We study the near-equilibrium critical dynamics of the O(3) nonlinear sigma model describing isotropic antiferromagnets with a non-conserved order parameter reversibly coupled to the conserved total magnetization. We find that in equilibrium, the dynamics is well-separated from …
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Non-equilibrium dynamics in three-dimensional magnetic spin models and molecular motor-inspired one-dimensional exclusion processes
We investigate the relaxation dynamics of two distinct non-equilibrium processes: relaxation of three-dimensional antiferromagnetic lattice spin models with Heisenberg interaction following a critical quench, and a one-dimensional exclusion process inspired by the gear-like motion of molecular …
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Holography and strongly correlated systems
… study this transition in detail, revealing novel critical behavior, including locally quantum critical dynamics and the existence of an infinite tower of excited states related by a discrete subgroup of the original emergent conformal symmetry. Throughout this thesis we focus on how the novel …
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Dynamics of Social-ecological Traps: The Case of Small-scale fisheries in the Philippines
… small-scale fisheries in the Philippines. These critically valuable fishery areas include small-scale fish farming in an inland riverine system, north of Manila; small-scale capture fisheries in Northern Mindanao; and mariculture parks, also in Northern Mindanao, Philippines. Small-scale …
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Dynamics of Social-ecological Traps: The Case of Small-scale fisheries in the Philippines
… small-scale fisheries in the Philippines. These critically valuable fishery areas include small-scale fish farming in an inland riverine system, north of Manila; small-scale capture fisheries in Northern Mindanao; and mariculture parks, also in Northern Mindanao, Philippines. Small-scale …
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An Improved Water-Driven Sediment Yield Model for Cold Agricultural Regions
… the growing season and fail to capture the critical dynamics of spring snowmelt over frozen or partially frozen soils and the “fill-and-spill” flow regimes characteristic of low-gradient, depressional areas of cold regions. is research addresses this critical knowledge gap by developing, …