Sökning: "classical mechanics"

Visar resultat 11 - 15 av 59 uppsatser innehållade orden classical mechanics.

1. 11. Segmentering av medicinska bilder med inspiration från en quantum walk algoritm

   Kandidat-uppsats, KTH/Medicinteknik och hälsosystem

   Författare :Bestun Altuni; Jasin Aman Ali; [2023]
   Nyckelord :Discrete time quantum walk; medical image segmentation; random walk; quantum walk; Tidsdiskret kvantvandring; medicinsk bildsegmentering; slumpmässig vandring; kvantvandring;

   Sammanfattning : För närvarande utforskas quantum walk som en potentiell metod för att analysera medicinska bilder. Med inspiration från Gradys random walk-algoritm för bildbehandling har vi utvecklat en metod som bygger på de kvantmekaniska fördelar som quantum walk innehar för att detektera och segmentera medicinska bilder. LÄS MER

3. 12. 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. 13. Comparing Quantum and Semi-Classical Approaches to Non-Collinear Magnetism in an Electron-Spin Dimer

   Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

   Författare :Sherwan Jamo Abdi; [2023]
   Nyckelord :Skyrmion Electron Spin Dzyaloshinskii-Moriya Interaction DMI Ehrenfest Semiclassical; Physics and Astronomy;

   Sammanfattning : In this bachelor thesis, an explorative theoretical analysis is presented on a model system characterized by various and competing magnetic interactions. The system comprises two localized magnetic moments (spins), and a single itinerant electron that hops between two orbitals located at the spins’ positions. LÄS MER

5. 14. How to Rise from Ashes : A Comprehensive Guide to Finally Understand Canonical Quantization and Build Quantum Mechanics from Scratch

   L3-uppsats, Uppsala universitet/Materialteori; Uppsala universitet/Avdelningen för teoretisk filosofi

   Författare :Karl Herlin; [2022]
   Nyckelord :Quantum mechanics; History of quantum mechanics; Canonical Quantization; double-slit experiment; The Photoelectric Effect; Compton Scattering; Matter Waves; Bohr’s Atomic Model; Old Quantum Theory; Heisenberg-Born-Jordan Matrix Mechanics; Schrodinger’s Quantum Wave Mechanics; equations of motion;

   Sammanfattning : In this review essay, we account for the historical development of canonical quantization. By a detailed review of The Ultraviolet Catastrophe, The Photoelectric Effect, Compton Scattering, Matter Waves and Bohr's Atomic Model we learn about Old Quantum Theory. LÄS MER

7. 15. 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