Essays about: "Quantisation"

Showing result 1 - 5 of 11 essays containing the word Quantisation.

  1. 1. Particle Detection in Bone Marrow Using CNNs and Transformer Networks

    University essay from Lunds universitet/Matematik LTH

    Author : Anna Källén; Marcus Williams; [2023]
    Keywords : Bone Marrow; Dark Field Microscopy; Fourier Ptychography; Machine Learning; Convolutional Neural Networks; Transformer Networks; Quantisation; Technology and Engineering;

    Abstract : The critical role of hematological stem cells, concentrated in bone marrow, in disease diagnosis makes the detection of these cells an imperative task. The current process, however, is slow and heavily reliant on expert interpretation, underscoring the need for automation. READ MORE

  3. 2. Quantum Transport in Topological Insulator Nanowires

    University essay from KTH/Fysik

    Author : Sergi Pradas Rodriguez; [2023]
    Keywords : quantum transport; topological insulators; nanowires; numerical analysis; Kwant; etc.; kvanttransport; topologiska isolatorer; nanotrådar; numerisk analys; Kvant; etc.;

    Abstract : Three-dimensional topological insulators are materials that have a bulk band gap like a traditional insulator, but which hold topologically protected conducting surface states. In this thesis we present a numerical analysis of the surface states of topological insulator nanowires in the tight-binding approximation. READ MORE

  4. 3. Beyond Mean-Field Description of Bose-Einstein Condensate

    University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Author : Daniel Larsson Persson; [2021]
    Keywords : Bose-Einstein condensate; BEC; dilute; non-uniform; quantum depletion; second quantisation; mean field; mean-field approximation; the Gross-Pitaevskii equation; Gross-Pitaevskii; perturbation theory; many-body perturbation theory; Rayleigh-Schrödinger perturbation theory; Rayleigh-Schrödinger; Epstein-Nesbet perturbation theory; Epstein-Nesbet; quantum ring; Physics and Astronomy;

    Abstract : This thesis work is on the theoretical description of dilute Bose-Einstein condensates (BEC) that are non-uniform, meaning that more than one single-particle state is occupied. This phenomenon is usually called quantum depletion. READ MORE

  5. 4. Audio Detection for Preparation of Video Rate Controller

    University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

    Author : Olle Axelsson; Tobias Bladh; [2021]
    Keywords : Audio detection; Gaussian Mixture Model; GMM; Video Rate Control; Rate Control; Video Streaming; Technology and Engineering;

    Abstract : Modern video streaming may use the protocol H.264 to encode video in high quality. The protocol takes advantage of similarities between consecutive frames to lower the bit rate. If there are differences between frames the bit rate will therefore rise. READ MORE

  6. 5. Quantum structure of holographic black holes

    University essay from KTH/Fysik

    Author : Elias Riedel Gårding; [2020]
    Keywords : BTZ spacetime; black hole; wormhole; AdS CFT; holographic renormalisation; analytic continuation; Bogolyubov transformation; QFT in curved spacetime; BTZ-rumtid; svart hål; maskhål; AdS CFT; holografisk renormering; analytisk fortsättning; Bogolyubov-transformation; kvanfältsteori i krökt rumtid;

    Abstract : We study a free quantum scalar field in the BTZ spacetime as a model of the AdS/CFT correspondence for black holes, and show the essential steps in computing Bogolyubov coefficients between modes on either side of the wormhole. As background, we review the BTZ geometry in standard, Kruskal and Poincaré coordinates, holographic renormalisation of the dual field theory and canonical quantisation in curved spacetime. READ MORE