Sökning: "spin wave"

Visar resultat 6 - 10 av 18 uppsatser innehållade orden spin wave.

  1. 6. Characterization of InAs-Al semiconductor-superconductor hybrid devices

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

    Författare :Markus Aspegren; [2020]
    Nyckelord :quantum dot; superconductivity; quantum transport; josephson junction; spectroscopy; yu-shiba-rusinov; hybrid devices; sub-gap states; quantum computer; majorana bound state; bogoliubov quasiparticle; Physics and Astronomy;

    Sammanfattning : In this thesis we study charge and spin transport through InAs-Al nanowire superconductor-semiconductor hybrid devices. We focus on assessing the quality of the InAs-Al contact interface when using a weak HCl acid to wet-etch the nanowire surface prior to metal evaporation. LÄS MER

  3. 7. Real-time Entanglement of Auger and XPS-electrons: a preliminary investigation

    Kandidat-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Philip Johansson; [2019]
    Nyckelord :Entanglement; Auger; Auger decay; photoemission; XPS; ED; exact diagonalization; Physics and Astronomy;

    Sammanfattning : In this work, we employ a semi-classical approach to light matter interaction to describe and char- acterize spin configurations resulting from quantum correlations between electrons created by a photoemission event and by the following Auger decay. The system studied consists of three atomic levels and two continua. LÄS MER

  4. 8. En Översikt av Dekoherens i Kontexten av Kvantmätning med en Exakt Lösbar Ren Dekoherensmodell

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Andrzej Perzanowski; Frode Boman; [2019]
    Nyckelord :;

    Sammanfattning : Vi förklarar konceptet dekoherens genom att först ge bakgrundsin- formation och sedan lösa en enkel modell som är menad att representera ett Stern-Gerlach experiment. Modellen är ett spin-1/2 kvantsystem och en mätapparat som består av en kvantpartikel. LÄS MER

  5. 9. Quantum kinetic relativistic theory of linearized waves in magnetized plasmas

    Magister-uppsats, Umeå universitet/Institutionen för fysik

    Författare :Haidar Al-Naseri; [2018]
    Nyckelord :Kinetic theory;

    Sammanfattning : In this work we have studied linear wave propagation in magnetized plasmas using a fully relativistic kinetic equation of spin-1/2 particles in the long scale approximation. The linearized kinetic equation is very long and complicated, hence we worked with restricted geometries in order to simplify the calculations. LÄS MER

  7. 10. Construction and Characterization of a Confocal Setup for Functionalization of Light Emitting Diodes and Laser Diodes Using an Amorphous Nonlinear Medium

    Kandidat-uppsats, Lunds universitet/Synkrotronljusfysik; Lunds universitet/Fysiska institutionen

    Författare :Hana Zeneli; [2018]
    Nyckelord :Characterization; Characterization Microscope; Microscope; Confocal; Amorphous Nonlinear Medium; Laser; Laser Diodes; Infrared Laser; Infrared; Optics; Nonlinear Optics; Nonlinear; White Light Emission; Infrared to White Light; Physics and Astronomy;

    Sammanfattning : A confocal microscope is built to examine molecular powders, and in particular the (PhSn)_4S_6 cluster, that emits white light when irradiated with infrared laser light. The confocal microscope operating at long working distances is assembled and characterized. LÄS MER