Essays about: "Quantum Mechanics"

Showing result 21 - 25 of 134 essays containing the words Quantum Mechanics.

  1. 21. Gravitational Decoherence in Macroscopic Quantum Systems

    University essay from Uppsala universitet/Teoretisk fysik

    Author : Niklas Engelhardt Önne; [2023]
    Keywords : 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;

    Abstract : 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. READ MORE

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

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

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

    Abstract : 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. READ MORE

  4. 23. Open quantum systems

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Anton Granlund Gustafsson; [2023]
    Keywords : quantum physics; quantum mechanics; open quantum systems; Lindblad equation; density matrix theory; qubit;

    Abstract : In this Bachelor thesis project, the Lindblad master equation is derived, both as the most general way of modeling interaction with an environment that lacks memory, and through microscopic derivations focused on assumptions about the way the system interacts with its environment (weak-coupling, Born-Markov and rotating wave approximations). It is then applied to a two-level system (qubit). READ MORE

  5. 24. On the possibility of property composition: A metaphysical investigation of submergent properties in top-down and bottom-up approaches to quantum mechanics

    University essay from Göteborgs universitet/Institutionen för filosofi, lingvistik och vetenskapsteori

    Author : Nova Ahlinder; [2022-01-25]
    Keywords : ;

    Abstract : In Schaffer’s Monism: priority of the whole (2010) an argument from quantum entanglement in favour of priority monism is put forward. The argument is based on quantum entanglement being a case of emergence and can loosely be described in terms of failure of property decomposition and success of property composition. READ MORE

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

    University essay from Uppsala universitet/Materialteori; Uppsala universitet/Avdelningen för teoretisk filosofi

    Author : Karl Herlin; [2022]
    Keywords : 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;

    Abstract : 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. READ MORE