Sökning: "Hyperfine transition"
Hittade 4 uppsatser innehållade orden Hyperfine transition.
1. Measuring the [C II]-to-H I connection in high-redshift absorption-selected galaxies
Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisationSammanfattning : HI neutral gas is the basic building block of galaxies. It dictates the star formation rate and hence the metal enrichment rates within high redshift galaxies. HI neutral gas cannot be directly observed beyond z ≈ 0. LÄS MER
2. Hyperfine structure measurements in scandium for IR spectroscopy
Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation; Lunds universitet/Institutionen för astronomi och teoretisk fysik - Genomgår omorganisationSammanfattning : Stellar abundances are important for understanding the chemical evolution of galaxies and provide us with constraints on stellar evolution and supernova nucleosynthesis. To determine stellar abundances accurately, atomic data is crucial. This data is incomplete for many elements, especially in the infrared region. LÄS MER
3. High delity operations in a europium doped inorganic crystal
Kandidat-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenSammanfattning : The computer has since it was invented become a most crucial tool for scientists in all fields. It has however severe limitations when it comes to e.g. simulating quantum systems, a task quantum computers might be able to perform. LÄS MER
4. Measurements of electric fields in a plasma by Stark mixing induced Lyman-α radiation
Master-uppsats, Institutionen för fysik och astronomiSammanfattning : This paper treats a non-intrusive method of measuring electric fields in plasmas and other sensitive or hostile environments. The method is based on the use of an atomic hydrogen beam prepared in the metastable fine structure quantum state 2s1/2. LÄS MER