Sökning: "quantum wire"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden quantum wire.

  1. 1. Quantum Transport in Topological Insulator Nanowires

    Master-uppsats, KTH/Fysik

    Författare :Sergi Pradas Rodriguez; [2023]
    Nyckelord :quantum transport; topological insulators; nanowires; numerical analysis; Kwant; etc.; kvanttransport; topologiska isolatorer; nanotrådar; numerisk analys; Kvant; etc.;

    Sammanfattning : Three-dimensional topological insulators are materials that have a bulk band gap like a traditional insulator, but which hold topologically protected conducting surface states. In this thesis we present a numerical analysis of the surface states of topological insulator nanowires in the tight-binding approximation. LÄS MER

  3. 2. Benchtop conductance quantization

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Författare :Markus Andersson; [2023]
    Nyckelord :Conductivity;

    Sammanfattning : Quantum conductance is a phenomenon associated with nanowires / quantum point contacts where the current through a wire is quantized. Experiments have shown that this phenomenon can be manifested at room temperature using macroscopic wires. This project is aimed to recreate these experiments with emphasis on simplicity. LÄS MER

  4. 3. Computational simulations of the Axion Longitudinal Plasma HAloscope

    Master-uppsats, Stockholms universitet/Fysikum

    Författare :Tove Klaesson; [2022]
    Nyckelord :;

    Sammanfattning : The quantum chromodynamics axion is a very light hypothetical particle that may simultaneously solve the dark matter and the strong CP problem. Recently, a new type of haloscope that can detect the resonant conversion of axions to photons was suggested, The Axion Longitudinal Plasma HAloscope (ALPHA). LÄS MER

  5. 4. Simulating the Effect of Spatial Potential Variation in Nanodevices with the NEGF Method

    Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

    Författare :Markus Berthilsson; [2022]
    Nyckelord :Technology and Engineering;

    Sammanfattning : In this master thesis nanowires have been simulated to study the effect of spatial imperfections in the nanowires. This spatial imper- fection took the form of potential fluctuations in the conduction band across the wire. LÄS MER

  7. 5. Investigations of p-type quantum dots in GaSb nanowires

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :In-Pyo Yeo; [2021]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : The purpose of this project is to investigate hole transport in p-type quantum dots formed in GaSb nanowire and operating as single hole transistors. The individual and controlled hole-spin confinement in such system yields a variety of proposed applications for spintronics or quantum computation. LÄS MER