Search for dissertations about: "Brownian motion"
Showing result 1 - 5 of 72 swedish dissertations containing the words Brownian motion.
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1. Relaxation and Resonance in Brownian Motion-Coupled Resonators
Abstract : In physics, there exists a number of paradigm systems – exactly solvable models that can represent a wide variety of physical realizations. My research is concerned with two of these paradigm systems: the harmonic oscillator and Brownian motion. READ MORE
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2. Ruin probabilities and first passage times for self-similar processes
Abstract : This thesis investigates ruin probabilities and first passage times for self-similar processes. We propose self-similar processes as a risk model with claims appearing in good and bad periods. Then, in particular, we get the fractional Brownian motion with drift as a limit risk process. READ MORE
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3. Topics on fractional Brownian motion and regular variation for stochastic processes
Abstract : The first part of this thesis studies tail probabilities forelliptical distributions and probabilities of extreme eventsfor multivariate stochastic processes. It is assumed that thetails of the probability distributions satisfy a regularvariation condition. READ MORE
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4. Atomic transport in optical lattices
Abstract : This thesis includes both experimental and theoretical investigations of fluctuation-induced transport phenomena, presented in a series of nine papers, by studies of the dynamics of cold atoms in dissipative optical lattices. With standard laser cooling techniques about 108 cesium atoms are accumulated, cooled to a few μK, and transferred into a dissipative optical lattice. READ MORE
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5. Bridges with Random Length and Pinning Point for Modelling the Financial Information
Abstract : The impact of the information concerning an event of interest occurring at a future random time is the main topic of this work. The event can massively influence financial markets and the problem of modelling the information on the time at which it occurs is of crucial importance in financial modelling. READ MORE