Essays about: "quantum rings"
Showing result 1 - 5 of 7 essays containing the words quantum rings.
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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. Optical Study of Micro-Resonators with G-centers as an Active Medium
University essay from KTH/Tillämpad fysikAbstract : The G-center has recently been identified as the first deterministic single-photon punctual emitter isolated in silicon. This discovery is of great interest for largescale quantum technologies, due to the abilities of silicon in terms of integration and scalability. READ MORE
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3. Discussions on Dai-Freed Anomalies
University essay from Uppsala universitet/Teoretisk fysikAbstract : In both field theories of high energy physics and field theories of condensed matter theories anomalies have been imposing constraints and bringing up new theories. While the perturbational and local anomalies from triangle diagrams are well-developed, we follow and review two works leading to non-perturbational global anomalies both related with Atiyah-Patogi-Sieger (APS) index theorem. READ MORE
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4. Tailoring the magnetic anisotropy in amorphous FeZr-based thin films on flexible and solid substrates
University essay fromAbstract : In this thesis the magnetic properties of novel amorphous magnetic materials grown on a flexible substrate of polyethylene naphthalate and a silicon wafer have been analyzed and characterized. The analyzed films are two films of amorphous Cobalt-Iron-Zirconium(Co36Fe53Zr11 & Co37Fe55Zr8) grown on the flexible substrate and two films of amorphous (Fe89Zr11) doped with boron (B). READ MORE
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5. Magnetization dynamics in nanorings
University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysikAbstract : This thesis investigates numerically the out of equilibrium properties of quantum rings with magnetic impurities, using the periodic Anderson model (PAM). The model is a simple template for the discussion of the physics of regular arrays of rare-earth impurities in metallic hosts. READ MORE