Search for dissertations about: "Adiabatic"
Showing result 1 - 5 of 113 swedish dissertations containing the word Adiabatic.
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1. Open Quantum Systems : Effects in Interferometry, Quantum Computation, and Adiabatic Evolution
Abstract : The effects of open system evolution on single particle interferometry, quantum computation, and the adiabatic approximation are investigated.Single particle interferometry: Three concepts concerning completely positive maps (CPMs) and trace preserving CPMs (channels), named subspace preserving (SP) CPMs, subspace local channels, and gluing of CPMs, are introduced. READ MORE
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2. Adiabatic guiding of matter waves
Abstract : Recent efforts in the field of ultracold atoms have goneinto creating wave guides of sub-micron sizes. In this thesis,the quantum dynamics of matter waves in such confiningpotential structures with minima extended in space isinvestigated. READ MORE
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3. Triptych of quantum matter in one dimension : Playful constructions in theoretical and computational physics
Abstract : In this compilation thesis, three different quantum mechanical systems are presented. All three have in common that they are one-dimensional quantum systems which, each in their own way, can be seen as analogous to other quantum systems. READ MORE
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4. Experimental and Theoretical Studies of Cis-Trans Photoisomerizations and Conditions for Effective Catalysis
Abstract : Triplet-sensitized cis-trans photoisomerizations have been investigated both experimentally and theoretically. Mapping of the reaction path for isomerization of 1,4-bis(1-propenyl)benzene (1) on the triplet state energy surface has been done by quantum yield measurements and laser flash photolysis. READ MORE
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5. Mechanical and Electrical Properties of Mesoscopic Wires
Abstract : The mechanical and electrical properties of mesoscopic wires have been studied theoretically using a free electron model. When a mesoscopic wire is elongated the conductance decreases in steps. Each step is accompanied by an abrupt change in the force. READ MORE