Search for dissertations about: "Anders Karlhede"
Found 5 swedish dissertations containing the words Anders Karlhede.
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1. Studies in general relativity : post-Newtonian approximation, invariant description of geometries and supergravity
Abstract : .... READ MORE
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2. Correlations in Frustrated Magnets : Classical and Quantum Aspects
Abstract : In this thesis, we study three different aspects of the physics of frustrated magnets. First, we study the interplay of thermal and quantum fluctuations in the transverse field frustrated Ising model on the triangular lattice. READ MORE
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3. One-dimensional theory of the quantum Hall system
Abstract : The quantum Hall (QH) system---cold electrons in two dimensions in a perpendicular magnetic field---is a striking example of a system where unexpected phenomena emerge at low energies. The low-energy physics of this system is effectively one-dimensional due to the magnetic field. READ MORE
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4. Engineering superconducting qubits : towards a quantum machine
Abstract : A quantum computer is an information processing machine, much like an ordinary classical computer, but its function is based on quantum mechanical principles. To be able to construct such a machine would be a fantastic accomplishment---to have total control over a quantum system is a dream for both physicists and science-fiction enthusiasts. READ MORE
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5. Non-abelian quantum Hall states and fractional charges in one dimension
Abstract : The fractional quantum Hall effect has, since its discovery around 30 years ago, been a vivid field of research—both experimentally and theoretically. In this thesis we investigate certain non-abelian quantum Hall states by mapping the two-dimensional system onto a thin torus, where the problem becomes effectively one-dimensional and hopping is suppressed, meaning that the classical electrostatic interaction dominates. READ MORE