Search for dissertations about: "quantum correction"

Showing result 6 - 10 of 33 swedish dissertations containing the words quantum correction.

  2. 6. Measurement Back-Action and Photon Detection in Microwave Quantum Optics

    Author : Anton Frisk Kockum; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Parity Measurement; Quantum Measurement; Quantum Optics; Quantum Stochastic Calculus; Circuit QED; Photodetection; Transmon; Dephasing;

    Abstract : In quantum optics, the interaction between atoms and photons is studied. In recent years, microwave quantum optics with superconducting circuits has emerged as an important tool for fundamental quantum optics experiments, and also as a promising way for implementing quantum computation. READ MORE

  4. 7. Meson Decay with Isospin Breaking At Two Loops

    Author : Karim Ghorbani; Teoretisk partikelfysik - Geonomgår omorganisation; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; kvantfältteori; Elementarpartikelfysik; quantum field theory; Elementary particle physics; Naturvetenskap; Natural science; hadron physics; standard model; chiral Lagrangian; quantum correction;

    Abstract : In all calculations done in this thesis, the evaluation of higher order quantum corrections has been central. In the first paper included in this thesis we have investigated the effects of finite volume meson propagators for quark-antiquark vacuum expectation value at two-loop level. READ MORE

  5. 8. Classical and Quantum Descriptions of Proteins, Lipids and Membranes

    Author : Richard Tjörnhammar; Olle Edholm; Sagar Pandit; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum corrections; Coordination structure; Polarisation; Phase transitions; Kelvin differential equation; Line tension; Elastic membrane models; Molecular particle models; Zinc binding; Cholesterol and Phospholipids; Biological Physics; Biologisk fysik;

    Abstract : In this thesis the properties of proteins and membranes are studied by molecular dynamics simulations. The subject is decomposed into parts addressing free energy calculations in proteins, mechanical inclusion models for lipid bilayers, phase transitions and structural correlations in lipid bilayers and atomistic lipid bilayer models. READ MORE

  6. 9. Quantum Chemical Calculations on ESR, Core Excitations, and Isotope Effects in Molecular Systems

    Author : Magnus Jansson; Sten Lunell; Nessima Salhi-Benachenhou; Sven Larsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Quantum chemistry; Kvantkemi; Quantum chemistry; Kvantkemi;

    Abstract : In this thesis, quantum chemical calculations are undertaken mostly in order to interpret experimental results, but also to learn about computational techniques, their performance and their limitations. In paper I, the ionization-cleavage process of alkenes is investigated and two pathways are followed, one of initial cleavage and subsequent ionization and on the opposite, the other one of initial ionization and subsequent cleavage. READ MORE

  7. 10. Quantum mechanical models of nanomagnetism in transition metal clusters and diluted magnetic semiconductors

    Author : Olof Strandberg; Matematisk fysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; diluted magnetic semiconductors; Mn As; Ga; transition metal clusters; magnetic anisotropy; Nanomagnetism; quantum geometric phases; Chern numbers; effective spin Hamiltonians; dimers;

    Abstract : This dissertation investigates nanomagnetism in small transition metal clusters and the diluted magnetic semiconductor (Ga,Mn)As. We derive quantum mechanical models aimed at a realistic description of the low energy physics in these systems. READ MORE