Essays about: "aharonov-bohm"
Found 4 essays containing the word aharonov-bohm.
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1. Electronic states in semiconductor double quantum dots and quantum rings - Theory and tight-binding modeling
University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionenAbstract : In recent experiments on semiconductor nanowires and quantum dots, enhanced g-factors up to several times the bulk value have been measured [1] [2]. The enhancement is attributed to orbital contributions g∗orb to the effective g-factor g∗ = g∗spin+g∗orb from the coupling of the high angular momentum ring-like states to the magnetic field. READ MORE
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2. Geometric Phases in Classical and Quantum Systems
University essay from Uppsala universitet/Teoretisk fysikAbstract : We are accustomed to think the phase of single particle states does not matter. After all, the phase cancels out when calculating physical observables. However, the geometric phase can cause interference even in single particle states and can be measured. READ MORE
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3. Path Integrals and Quantum Mechanics
University essay from Umeå universitet/Institutionen för fysikAbstract : In this thesis we are investigating a different formalism of non-relativistic quantum mechanics called the path integral formalism. It is a generalization of the classical least action principle. READ MORE
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4. Electron transport in quantum point contacts : A theoretical study
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : Electron transport in mesoscopic systems, such as quantum point contacts and Aharonov-Bohm rings are investigated numerically in a tight-binding language with a recursive Green's function algorithm. The simulation reveals among other things the quantized nature of the conductance in point contacts, the Hall conductance, the decreasing sensitivity to scattering impurities in a magnetic field, and the periodic magnetoconductance in an Aharonov-Bohm ring. READ MORE
