Sökning: "Rindler"

Hittade 3 uppsatser innehållade ordet Rindler.

  1. 1. Cosmological Horizons and the Unruh Effect

    L3-uppsats, Uppsala universitet/Teoretisk fysik

    Författare :Niklas Engelhardt Önne; [2023]
    Nyckelord :Unruh effect; quantum scalar fields; Bogoliubov transformations; accelerated observers; Minkowski spacetime; cosmological horizons; Rindler observers; special relativity; QFT; Unruh-effekten; skalära kvantfält; Bogoliubov-transformationer; accelererande referenssystem; Minkowski rumtid; kosmologiska horisonter; Rindlerobservatörer; speciell relativitetsteori; QFT;

    Sammanfattning : The black hole information paradox, which states that the evaporation of black holes due to Hawking radiation results in a violation of the conservation of quantum information, is arguably one of the most fundamental problems in all of modern physics. Through the equivalence principle, the essence of the problem can be understood and studied in the context of much simpler flat spacetime (described by the theory of special relativity); in this context the Hawking radiation takes the form of the so-called Unruh effect, a thermal effect in the vacuum of a Minkowski quantum field theory that can be measured by accelerated observers. 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. Andningsankaret - förtöjningen i nuet? : Effekt av en kort mindfulness-intervention på grad av mindfulness och affekt

    Magister-uppsats, Örebro universitet/Akademin för juridik, psykologi och socialt arbete

    Författare :Annika Palmblad; Johanna Rindler; [2010]
    Nyckelord :andningsankaret; egenträning; mindfulness; positiv och negativ affekt.;

    Sammanfattning : .... LÄS MER