Essays about: "quantum spin Hall effect"
Found 3 essays containing the words quantum spin Hall effect.
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1. Gap properties of helical edge states in two-dimensional topological insulators with time-dependent magnetic impurities
University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionenAbstract : The quantum mechanical equivalent of the classical Hall effect can lead to interesting results in solid state physics. A similar effect, that has received attention in recent years, occurs when large spin-orbit coupling is present in a material, the so-called quantum-spin Hall effect. READ MORE
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2. From the quantum Hall effect to topological insulators : A theoretical overview of recent fundamental developments in condensed matter physics
University essay from Teoretisk fysikAbstract : In this overview I describe the simplest models for the quantum Hall and quantum spin Hall effects, and give some general indications as to the description of topological insulators. As a background to the theoretical models I will first trace the development leading up to the description of topological insulators . READ MORE
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3. Exact Diagonalization of Few-electron Quantum Dots
University essay from Institutionen för datavetenskap, fysik och matematik, DFMAbstract : We consider a system of few electrons trapped in a two-dimensional circularquantum dot with harmonic confinement and in the presence of ahomogeneous magnetic field, with focus on the role of e-e interaction. Byperforming the exact diagonalization of the Hamiltonian in second quantization,the low-lying energy levels for spin polarized system are obtained. READ MORE
