Sökning: "Allmän relativitetsteori"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Allmän relativitetsteori.

  1. 1. Introduktion till Cliffordalgebra som ett alternativt ramverk för matematisk fysik

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Jona Nordin Nobuoka; [2023]
    Nyckelord :Cliffordalgebra; matematisk fysik; multivektorer; geometrisk algebra; vektorderivata; rumtidsalgebran; rotorkinematik;

    Sammanfattning : Denna rapport introducerar Cliffordalgebra och visar hur det i flera fall kan ersätta tensoralgebran som grundläggande algebraisk struktur för matematisk fysik. Först konstrueras en allmän Cliffordalgebra utifrån ett vektorrum och en kvadratisk form. LÄS MER

  3. 2. Gravitational Decoherence in Macroscopic Quantum Systems

    Kandidat-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Niklas Engelhardt Önne; [2023]
    Nyckelord :decoherence; gravitational decoherence; quantum mechanics; quantum physics; macroscopic quantum mechanics; macroscopic quantum physics; gravity; general relativity; gravitational time dilation; quantum-to-classical transition; nonrelativistic quantum mechanics; quantum gravity; dekoherens; gravitationell dekoherens; kvantmekanik; kvantfysik; makroskopisk kvantmekanik; makroskopisk kvantfysik; gravitation; allmän relativitetsteori; gravitationell tidsdilatation; övergången från kvantfysik till klassisk fysik; ickerelativistisk kvantmekanik; kvantgravitation;

    Sammanfattning : The problem of how quantum mechanics gives rise to classicality has been debated for more than a century. A commonly proposed solution is decoherence, i.e. the gradual decay of superpositions in open quantum systems due to their inevitable interaction with their environment. LÄS MER

  4. 3. 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

  5. 4. 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

  7. 5. B-plane orbital resonance analysis and applications

    Master-uppsats, KTH/Rymdteknik

    Författare :Alessandro Masat; [2020]
    Nyckelord :;

    Sammanfattning : Many space engineering and orbital mechanics applications seek for the usage of focused mathematical models, capable of providing useful insight onto particular phenomena or exploiting some theoretical and physical tools to reduce the computational costs and/or increase the level of accuracy reached. Orbital resonances are one of the phenomena that needs to be properly modelled, both for exploiting such features in the mission design phase and to predict possible resonant returns of threatening objects closely approaching a specified planet. LÄS MER