Sökning: "macroscopic quantum mechanics"
Visar resultat 1 - 5 av 6 uppsatser innehållade orden macroscopic quantum mechanics.
1. Quantum signatures in the work fluctuation-dissipation relation protocol
Kandidat-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysikSammanfattning : Quantum thermodynamics deals with the behavior of thermal machines that operate in the quantum regime, where coherences and entanglement can have a significant impact. However, detecting such quantum effects in thermal machines can be challenging, as they are primarily manifested as fluctuations. LÄS MER
2. Gravitational Decoherence in Macroscopic Quantum Systems
Kandidat-uppsats, Uppsala universitet/Teoretisk fysikSammanfattning : 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
3. Topological Band Theory, An Overview
Master-uppsats, Göteborgs universitet / Institutionen för fysikSammanfattning : Topological insulators, superconductors and semi-metals are states of ma er with unique features such as quantized macroscopic observables and robust, gapless edge states. ese states can not be explained by standard quantum mechanics, but require also the framework of topology to be properly characterized. LÄS MER
4. Microscopic and Macroscopic Samples of Atoms in Superposition States Studied by Attosecond Pulses
Magister-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionenSammanfattning : In the present thesis, the interaction between atoms in superposition states and attosecond pulses is studied from the microscopic to the macroscopic regime. Using a semi-classical framework, three different models have been explored in order to investigate attosecond light--matter interaction processes. LÄS MER
5. Measure of macrocoherence
Master-uppsats, Uppsala universitet/Teoretisk fysikSammanfattning : Macrocoherence is the concept of quantum mechanics being scaled up to the macroscopic level where everyday physical systems should inhibit quantum mechanical properties, however this is not what is observed. Through the use of Leggett-Garg inequalities, one can infer if there is a fundamental quantum mechanical behavior of the system being observed. LÄS MER