Implementational aspects of code-based cryptography

was enhanced with asteroids, upgrade points and shield regenerators, which make it more complex and allow tactical playing and team work. The keybord controls were enriched with the mouse control feature, which in combination with various motion hints and a better game balance have made the game to a dynamic

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I herewith certify that all material in this dissertation which is not my own work has been properly acknowledged.

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In this thesis, two sets of experimental studies in bosonic and fermionic gases are described. In the first part of the thesis, itinerant ferromagnetism was studied in a strongly interacting Fermi gas of ultracold atoms. The observation of nonmonotonic behavior of lifetime, kinetic energy, and size

Ultracold atoms in optical lattices provide a highly control-lable environment for the clean experimental realization of various model Hamiltonians from condensed matter and statistical physics. For example, the two-component Bose-Hubbard model, which re-duces to an anisotropic spin-1/2 Heisenberg

Abstract. We review theoretical models of individual motility as well as collective dynamics and pattern formation of active particles. We focus on simple models of active dynamics with a particular emphasis on nonlinear and stochastic dynamics of such self-propelled entities in the framework

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