Sökning: "kandidatuppsats fysik"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden kandidatuppsats fysik.

  1. 1. Creating Artificial Quantum Chiral States : Time Evolving Open Spin Chains

    Kandidat-uppsats, Uppsala universitet/Materialteori

    Författare :Emil Beiersdorf; [2023]
    Nyckelord :Quantum chirality; chirality; spin interaction; Heisenberg interaction; DM interaction; quantum physics; quantum mechanics; molecular nanomagnet; mathematical physics; theoretical physics; Kvantkiralitet; kiralitet; spinninteraktioner; Heisenberginteraktion; DMinteraktion; kvantfysik; kvantmekanik; molekylär nanomagnet; matematisk fysik; teoretisk fysik;

    Sammanfattning : The discoveries in applications of chirality in various areas of science seem to never cease to emerge. Chirality, being the property that some objects are geometrically distinguishable from their mirror image, is a tiny difference of vast importance. LÄS MER

  3. 2. Thawing, Scaling and Tracking QUintessence in a Phase Space Perspective : and comparisons to the ΛCDM model

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Arvid Ryberg; [2022]
    Nyckelord :Quintessence; Cosmology; Dark Energy; Astro physics;

    Sammanfattning : This thesis aims to give an introduction to quintessence models as well ascomparing those models with the currently accepted ΛCDM model. We willconsider quintessence in a spatially flat and isotropic Universe and useregular dynamical systems on a bounded three dimensional phase spacewhere we perform numerical calculations. LÄS MER

  4. 3. Extending the Standard Model by a Dark and Visible Scalar Singlet

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

    Författare :Aram Fatah; [2020]
    Nyckelord :The two real singlet model; higgs boson; dark matter; beyond the standard model; bsm; scalar; Physics and Astronomy;

    Sammanfattning : In this thesis, we extend the Higgs sector of the Standard Model by two scalar singlets and impose a discrete Z2 symmetry on each of them, under which, both singlets are odd. One of the two scalar singlets will acquire a vacuum expectation value while the other one does not. LÄS MER

  5. 4. Trainable Activation Functions For Artificial Neural Networks

    Kandidat-uppsats, Lunds universitet/Beräkningsbiologi och biologisk fysik - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisation

    Författare :Jim Öhman; [2018]
    Nyckelord :ANN; ARTIFICIAL NEURAL NETWORKS; ACTIVATION FUNCTIONS; REGULARIZATION; Science General;

    Sammanfattning : Artificial Neural Networks (ANNs) are widely used information processing algorithms based roughly on biological neural networks. These networks can be trained to find complex patterns in datasets and to produce certain output signals given a set of input signals. LÄS MER

  7. 5. Study of melting and differentiation in iron meteorite parent bodies : How ambient temperature and abundance of 26Al affect accretion times

    Kandidat-uppsats, Uppsala universitet/Institutionen för fysik och astronomi

    Författare :Tuomas Mattson; [2016]
    Nyckelord :Iron meteorites; accretion; differentiation; 26Al;

    Sammanfattning : This bachelor thesis consists of two parts. The first part consists of a review of the theoretical background. It starts off with a shorter review on theories of the history of the early Solar System, from protostellar evolution to grain agglomeration. LÄS MER