Sökning: "Relativitet"

Visar resultat 1 - 5 av 18 uppsatser innehållade ordet Relativitet.

  1. 1. Gravitational Collapse of a Massless Scalar Field in a Theory of Minimally Modified Gravity

    Master-uppsats, KTH/Fysik

    Författare :Atabak Fathe Jalali; [2024]
    Nyckelord :Theoretical physics; astrophysics; modified gravity; minimally modified gravity; gravitational collapse; VCDM; scalar collapse; apparent horizon; numerical relativity; Teoretisk fysik; astrofysik; modifierad gravitation; minimalt modifierad gravitation; gravitationskollaps; VCDM; skalär kollaps; uppenbar horisont; numerisk relativitet;

    Sammanfattning : This thesis explores the spherically symmetric gravitational collapse of a massless scalar field in a minimally modified gravity theory denoted VCDM (V replaces $\Lambda$ in the $\Lambda$CDM abbreviation), a class of theories propagating the same degrees of freedom as general relativity at the expense of broken 4D diffeomorphism invariance. Numerical evolution of the equations of motion reveals that for small initial scalar profile amplitudes, no black hole forms from the collapse. LÄS MER

  3. 2. Comment traduire « förvirrad » en français ? : Une étude des traductions du mot suédois « förvirring » et ses dérivés

    Kandidat-uppsats, Umeå universitet/Institutionen för språkstudier

    Författare :William Hellis; [2023]
    Nyckelord :Relativité linguistique; La théorie interprétative; Asymétrie; L hypothèse de Sapir-Whorf; Faux amis; Lingvistisk relativitet; Tolkningsteori; Asymmetri; Sapir-Whorf-hypotesen; Falska vänner;

    Sammanfattning : Inom översättning och vid inlärning av ett nytt språk kan man stöta på ord som är svåra att uttrycka påmålspråket. Ett sådant ord är ”förvirring” i förhållande till franskan. LÄS MER

  4. 3. Spatiotemporal Consciousness in Special Relativity

    Master-uppsats, Umeå universitet/Institutionen för idé- och samhällsstudier

    Författare :Gustaf Malmberg; [2023]
    Nyckelord :Consciousness; Phenomenology; Special Relativity; Relativistic Spacetime; Theoretical Physics;

    Sammanfattning : The experience of time passing is a fundamental part of the human experience, but what is the relationship between conscious experiences in time and the relativistic nature of space and time? It is natural to think that our phenomenal experiences are realised by neuralevents in our brains. And it seems plausible that the order of these neural events makes a difference to our phenomenology. LÄS MER

  5. 4. Speciell relativitetsteori i gymnasieskolan

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fysikundervisningens didaktik

    Författare :Vendla Niklasson; [2022]
    Nyckelord :speciell relativitetsteori; fysikdidaktik; einsteins tåg; gymnasieskolan; tvillingparadoxen;

    Sammanfattning : Special relativity is a subject that attracts interest among students, but there are many things that make students experience it as difficult. As a physics teacher, it is important to both have a solid base of knowledge in physics as well as educational knowledge within the subject. LÄS MER

  7. 5. The 2+1 Lorentz Group and Its Representations

    Kandidat-uppsats, Stockholms universitet/Fysikum

    Författare :Klas Sjöstedt; [2020]
    Nyckelord :The Lorentz group; representation theory; anti-de Sitter space; relativity; Lorentzgruppen; representationsteori; anti-de Sitter-rum; relativitet;

    Sammanfattning : The Lorentz group is a symmetry group on Minkowski space, and as such is central to studying the geometry of this and related spaces. The group therefore shows up also from physical considerations, such as trying to formulate quantum physics in anti-de Sitter space. LÄS MER