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 11 of 11 for “"Dynamical phase"”.
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Dynamical Phase-Change Phenomena
Matter on earth exists mostly in three different phases of solid, liquid, and gas. With extreme amounts of energy, temperature, or pressure, a matter can be changed between the phases. Six different types of phase-change phenomena are possible: freezing (the substance changes from a liquid to a …
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Microstructure design of mechanically alloyed materials
… thesis seeks to address this need. To this end, phase strength effects are incorporated into a kinetic Monte Carlo simulation of a mechanically-driven, binary alloy, which can provide quantitative insight into the combination of processing and material parameters that dictate the steady state …
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Cluster mean-field dynamics of the long-range interacting Ising chain
… truly long-range, it exhibits a sharp mean-field dynamical phase transition from a dynamical ferromagnetic to a dynamical paramagnetic phase. Reducing the range of the interactions a critical region, showing hypersensitivity to initial conditions, appears. Interestingly, this chaotic region shares …
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Probing Spin Glass Energy Landscapes with 1/f Noise
The spin-glass transition is a dynamical phase transition, similar in nature to that of structural glasses and other systems. Upon quenching from above the transition temperature Tg to a measurement temperature T < Tg, experiments and simulations have unveiled an underlying length scale, the …
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Off- and online detection of dynamical phases in time series
… analysis of time series exhibiting a complex dynamical behaviour. We show that, while Markov chains are a natural choice to model the change of dynamical phases, vector autoregressive (VAR) processes provide a convincing model for the flexibility within a dynamical phase. They arise naturally …
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Dynamical large deviations and phase separation in systems of interacting particles
… of local observables. This explains how the dynamical free energy has non-trivial scaling forms with system size in one dimension and two dimensions. Furthermore we describe the long range effects of biasing two particles in the one dimensional system. Finally we investigate pressure and body …
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Interacting Stochastic Processes: from Viciousness to Caging to Force Chains
… system at higher densities. We find two new dynamical phase transitions between an active phase, where some fraction of the colloids are always being displaced from their position at the beginning and end of each shear cycle, and an inactive phase in which all colloids return to their initial …
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Non-Equilibrium Pattern Formation in Multi-Species Interacting Particle Systems
… external force. We identify and characterise the dynamical phase transitions that involve phase separation into domains that may be parallel or perpendicular to a driving force. We also analyse how phase separations emerge from different microscopic interactions: The perpendicular state appears …
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Geometric Mechanics of Active Particles
… role in classical dynamics, most notably in the dynamical preservation of symplecticity in Hamiltonian systems. In this way, dynamics derived from a Hamiltonian function admit energy-conserving integration schemes with an error that remains bounded in the infinite time limit. Furthermore, the …
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Many-body localization and tensor networks
… of pseudo-spin SU (2) symmetry on the MBL phase. Chapter 7 is a side project that studies the influence of the duality-twisted boundary conditions on the critical twist defect chains. The MBL-ergodic transition is a dynamical phase transition which happens at finite energy density for a …