Sökning: "kth fysik"

Visar resultat 1 - 5 av 871 avhandlingar innehållade orden kth fysik.

1. 1. Topological excitations in field theory models of superconductivity and magnetism

   Författare :Philipp Rybakov; Egor Babaev; Maxim Mostovoy; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics; Teoretisk fysik; Theoretical Physics;

   Sammanfattning : Topological excitations are subjects of intensive studies in physics and mathematics. In solid-state and soft matter physics, topological excitations can largely determine the thermodynamic and electromagnetic properties of materials, while in high energy physics they were theorized as particles. LÄS MER

3. 2. Theoretical studies of X-ray induced nuclear dynamics

   Författare :Ivaylo Minkov; Hans Ågren; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Theoretical physics; Teoretisk fysik; Physics; Fysik;

   Sammanfattning : The present thesis is a theoretical study of several x-ray spectroscopies { x-ray absorption, xray photoelectron, radiative and non-radiative resonant Raman scattering spectroscopy. The main focus point is investigating the role of the nuclear dynamics in molecules (naphthalene, biphenyl, the water dimer, HCl) on these spectra. LÄS MER

4. 3. Models of SO(10) Grand Unified Theories : Yukawa Sector and Gauge Coupling Unification

   Författare :Marcus Pernow; Tommy Ohlsson; Frank Deppisch; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; grand unified theories; renormalization group equations; neutrino masses; threshold effects; gauge coupling unification; Fysik; Physics;

   Sammanfattning : .... LÄS MER

5. 4. Experimental Studies of Neutron Deficient Nuclei in the A ≈ 110 and A ≈ 170 Mass Regions

   Författare :Wei Zhang; Bo Cederwall; Piotr Bednarczyk; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysik; Physics;

   Sammanfattning : This doctoral thesis describes several experimental studies on the structures of neutron-deficient nuclei with mass numbers A≈110 and A≈170. The experiments were carried out at the Accelerator Laboratory of the University of Jyväskylä, Finland, using heavy-ion fusion-evaporation reactions induced by beams of energies around 5 megaelectronvolts/nucleon. LÄS MER

7. 5. Properties of baryons in the chiral quark model

   Författare :Tommy Ohlsson; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Chiral quark model; baryons; configuration mixing; magnetic moments; Coleman-Glashow sum-rule; spin polarizations; weak form factors; semilepronic decays; Physics; Fysik;

   Sammanfattning : In this thesis, several properties of baryons are studied using the chiral quark model. The chiral quark model is a theory which can be used to describe low energy phenomena of baryons. In Paper 1, the chiral quark model is studied using wave functions with configuration mixing. LÄS MER