Sökning: "Relativitetsteori"

Visar resultat 6 - 10 av 24 uppsatser innehållade ordet Relativitetsteori.

  1. 6. Evolution och teori : En utvärdering av gymnasieelevers kunskaper om evolutionsteorin, naturvetenskaplig teoribildning och sambandet däremellan.

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Simon Eriksson; [2022]
    Nyckelord :Evolution; evolutionsteorin naturvetenskapliga teorier; ämnesdidaktik; naturvetenskaplig didaktik; gymnasiet;

    Sammanfattning : Evolutionsteorin är att betrakta på samma sätt som gravitationsteorin eller Einsteins relativitetsteori – ett naturvetenskapligt faktum och en utgångspunkt i biologins kunskapsanspråk. Den har därför en särskilt stark status i den svenska skolans styrdokument och centrala innehåll för både grund- och gymnasieskolan. LÄS MER

  3. 7. Matter-streams as sources of the Kerr metric

    Master-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Julian Boy; [2022]
    Nyckelord :General Relativity; Black holes; Physics; Kerr metric; Physics and Astronomy;

    Sammanfattning : An introduction to the thin-shell formalism and distributional approach to General Relativity is provided. The formalism is utilized to investigate possible distributions of matter that can act as a source to the Kerr metric. LÄS MER

  4. 8. General Relativity and Dynamical Universes

    Kandidat-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Kajsa Fransson; [2021]
    Nyckelord :cosmology; general relativity; scale factor; friedmann equation;

    Sammanfattning : The aim of this report is to explore different models of cosmology, depending on components as matter, radiation and dark energy. To be able to investigate the behaviour and age of these model universes, it is necessary to solve the Friedmann equation. LÄS MER

  5. 9. Spherically Symmetric Gravitational Collapse

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Lucas Bring; [2021]
    Nyckelord :gravitational collapse; gravitation; general relativity; black hole; Schwarzschild coordinates; Gullstrand-Painleve coordinates; Friedmann-Robertson-Walker metric; finite-time collapse; Physics and Astronomy;

    Sammanfattning : This thesis presents a derivation of the equation of motion of particles in a dust star, as it undergoes collapse. This is done by finding exact solutions to the Einstein field equations. We follow the original work by Oppenheimer and Snyder, starting from the general spherically symmetric metric in comoving coordinates. LÄS MER

  7. 10. The two-Higgs-doublet modelas an explanation for the muon (g−2) discrepancy

    Kandidat-uppsats, Lunds universitet/Teoretisk partikelfysik - Geonomgår omorganisation

    Författare :Zenny Wettersten; [2020]
    Nyckelord :Beyond Standard Model; BSM; CP violation; Higgs Physics; two Higgs doublet model; 2hdm; Physics and Astronomy;

    Sammanfattning : The general Z2-violating two-Higgs-doublet model (2HDM) is analysed as an explanation for the discrepancy between Standard Model predictions and experimental measurements of the muon anomalous magnetic dipole moment ∆aµ, with the condition that it does not provide an electron electric dipole moment |eEDM| larger than experimental bounds. Several point studies of individual 2HDM parameter space points are made to show large-scale cancellation among Barr-Zee 2-loop contributions to |eEDM| at large Yukawa lepton sector magnitudes, as well as an approximately linear growth of total aµ contribution when those magnitudes are rescaled by a common factor, reaching the same order as ∆aµ. LÄS MER