Essays about: "teoretisk fysik"

Showing result 1 - 5 of 343 essays containing the words teoretisk fysik.

  1. 1. Computational modelling of photosynthetic excitons coupled to a microcavity

    University essay from Lunds universitet/Institutionen för teoretisk fysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Beräkningsbiologi och biologisk fysik; Lunds universitet/Institutionen för astronomi och teoretisk fysik

    Author : Ilmari Turunen; [2022]
    Keywords : Cavity QED; LH2; Chlorophyll; Exciton; Polariton; Transition dipole moment; Absorbance; Physics and Astronomy; Chemistry; Biology and Life Sciences;

    Abstract : Cavity quantum electrodynamics (QED) is a theory that is used for describing the interaction between matter and cavity modes. Not until relatively recently, cavity QED has been extended to the study of photosynthetic light-harvesting complexes (LHCs). READ MORE

  2. 2. Symmetry Analysis of Orbitals in a Plane Wave Basis : A Study on Molecules and Defects in Solids

    University essay from Linköpings universitet/Teoretisk Fysik

    Author : William Stenlund; [2022]
    Keywords : Point Defect; Divacancy; Symmetry; Group Theory; DFT; Plane Wave; Plane Wave Basis; 4H-SiC;

    Abstract : Modeling and analysing materials with theoretical tools is of great use when finding new systems for applications, for example, semiconductors with point defects can be used for quantum applications, like single photon emitters. One important aspect to consider symmetry, which can yield useful information about the properties of a system. READ MORE

  3. 3. Holographic RG-flows and the Domain-Wall/Cosmology correspondence

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Jean-François Vaduret; [2022]
    Keywords : holography; cosmology; domain-wall; AdS; CFT; correspondence;

    Abstract : In this master thesis we investigate implications of the Domain-Wall/Cosmology (DW/C) correspondence on one-point functions of holographic RG-flows. The thesis gives a detailed computation of linearized gauge-invariant Einstein equations in (d+1) dimensions while making the DW/C correspondence explicit. READ MORE

  4. 4. Modelling of gene regulatory and spatial mechanisms which pattern the early human neural tube

    University essay from Lunds universitet/Institutionen för astronomi och teoretisk fysik; Lunds universitet/Beräkningsbiologi och biologisk fysik; Lunds universitet/Fysiska institutionen; Lunds universitet/Institutionen för teoretisk fysik

    Author : Fredrik Bertilsson; [2022]
    Keywords : Biophysics; systems biology; gene regulatory networks; neural tube; isthmic organizer; midbrain-hindbrain boundary; WNT; FGF; morphogens; reaction-diffusion; finite-difference; 3D modelling; Physics and Astronomy;

    Abstract : Tissue patterning during development is thought to be driven largely by gene regulatory responses to spatial gradients of molecular signals, known as morphogens. In this thesis, early patterning of the human neural tube is studied using two different gene regulatory network models. READ MORE

  5. 5. Dynamic Stopping for Artificial Neural Networks

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Beräkningsbiologi och biologisk fysik; Lunds universitet/Teoretisk partikelfysik; Lunds universitet/Institutionen för teoretisk fysik; Lunds universitet/Institutionen för astronomi och teoretisk fysik

    Author : Daniel Louis Hubert Lizotte; [2022]
    Keywords : Artificial Neural Network; Physics and Astronomy;

    Abstract : The growing popularity of Artificial Neural Networks (ANN) demands continuous improvement and optimization of the training process to achieve higher-performing algorithms at a lower computational cost. During training an ANN learns to solve a problem by looking at examples, and will iteratively go over a dataset to reach an optimal performance. READ MORE