Search for dissertations about: "Institutionen för teoretisk fysik."
Showing result 1 - 5 of 118 swedish dissertations containing the words Institutionen för teoretisk fysik..
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1. On string integrability A journey through the two-dimensional hidden symmetries in the AdS/CFT dualities
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : One of the main topics in the modern String Theory are the conjectured string/gauge (AdS/CFT) dualities. Proving such conjectures is extremely difficult since the gauge and string theory perturbative regimes do not overlap. In this perspective, the discovery of infinitely many conserved charges, i.e. READ MORE
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2. Development and applications of theoretical algorithms for simulations of materials at extreme conditions
University dissertation from Linköping : Linköping University Electronic PressAbstract : Materials at extreme conditions exhibit properties that differ substantially from ambient conditions. High pressure and high temperature expose anharmonic, non-linear behavior, and can provoke phase transitions among other effects. Experimental setups to study that sort of effects are typically costly and experiments themselves are laborious. READ MORE
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3. Theoretical prediction of properties of atomistic systems Density functional theory and machine learning
University dissertation from Linköping : Linköping University Electronic PressAbstract : The prediction of ground state properties of atomistic systems is of vital importance in technological advances as well as in the physical sciences. Fundamentally, these predictions are based on a quantum-mechanical description of many-electron systems. READ MORE
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4. Gravitational perturbations in plasmas and cosmology
University dissertation from Umeå : Institutionen för FysikAbstract : Gravitational perturbations can be in the form of scalars, vectors or tensors. This thesis focuses on the evolution of scalar perturbations in cosmology, and interactions between tensor perturbations, in the form of gravitational waves, and plasma waves. READ MORE
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5. On transport theory of correlated mesoscopic systems
University dissertation from Uppsala : Acta Universitatis UpsaliensisAbstract : This thesis is about the theory of quantum transport through low dimensional correlated systems. Correlated systems are interacting many-particle systems where collective effects predominate over the individual properties of particles whereof they consist. Single particle approach to correlated systems would be essentially wrong. READ MORE
