Global ETD Search
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Showing 1 to 11 of 11 for “"mean-field analysis"”.
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Mean Field Analysis of Generalized Cyclic Competitions
The mean field analysis of stochastic dynamical system allows us to gain insight into the qualitative features of their complex behavior, as well as quantitative estimates of certain aspects of their coarse-grained properties. As such, it usually furnishes a first front in approaching new dynamical …
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Magnetic ordering in systems of reduced dimensionality
… structured materials were studied by the mean field analysis and some Monte Carlo simulation. These models were conditioned on a mapping from first principles calculations to the Ising model. The effect of the suggested octopolar reconstruction for the polar (111) surfaces of FCC was also …
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Scale-Free Networks in Molecular Biology: Algorithms and Random Walks Analyses
In this research, I focus on I) the mean field analysis of algorithms for scale-free networks in molecular biology and II) the analysis of biological networks using random walks and related algorithms. I: Many systems in nature and society are described by means of complex networks. Research …
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Magnetic-field-induced antiferromagnetism in the Kondo lattice
… of a Kondo insulator in an applied magnetic field. A variational mean field analysis of this system on a square lattice, backed up by quantum Monte Carlo calculations, reveals an interesting separation of magnetic field scales. For Zeeman energy comparable to the Kondo energy, the spin gap …
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Hofstadter Physics and Composite Fermionic Phase in Moiré Systems
… Hofstadter spectrum under an external magnetic field, revealing the rich fractal pattern and the impact of valley polarization induced by the magnetic field. Building on this framework, we delve into the concept of composite fermions, particularly in the context of the fractional quantum Hall …
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Analytic Results for Hopping Models with Excluded Volume Constraint
… chapter we present a Monte-Carlo study and a mean-field analysis for interface erosion caused by mobile vacancies. Part II: One-Dimensional Periodic Hopping Models with Broken Translational Invariance.Case of a Mobile Directional Impurity We study a random walk on a one-dimensional periodic …
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Phase transitions in lattice gauge theories
… mass in Monte Carlo simulations is discussed. A mean field analysis of finite density QCD is then presented, including the effects of additional chiral invariant four-fermion interactions. A lattice regularization is used with N1 = 4 flavors of staggered fermions. Particular attention is given to …
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Dynamics of a fully stochastic discretized neuronal model with excitatory and inhibitory neurons
… behavior, since the model limits on a mean-field deterministic system with multiple attractors. Our work investigates adding inhibition into the model. The new model exhibits the same metastable phases, but also exhibits new non-monotonic behavior that was not seen in the DeVille et al. …
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Dynamics on networks
… reduction method and ""nearest-neighbor"" mean-field analysis, are proposed to analyze its fix points and their stabilities. Both approaches aim to resolve the problem of the curse of dimensionality. For the first approach, we exploit the graph automorphism of the Petersen graph and find …
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Aspects of population dynamics
… of our simulations are also compared to a mean-field analysis. We find that the parameter region of predator and prey coexistence is enlarged relative to the stationary situation when the carrying capacity varies periodically. The stationary regime of our periodically varying LV system …
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Strongly correlated quantum fluids and effective thermalization in non-Markovian driven-dissipative photonic systems
… (FQH) effect which occurs in presence of a gauge field, and features a special type of elementary excitation possessing a fractional charge and obeying to fractional statistics called `anyon'. These quantum many-body effects were explored in a first place in systems well isolated from the external …