Essays about: "harmonic trap"

Found 2 essays containing the words harmonic trap.

1. 1. Rotational Properties of Lee-Huang-Yang Bosonic Condensates from One to Two Dimensions

   University essay from Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

   Author : Hjalmar Holmström; [2022]
   Keywords : BEC; Bose-Einstein condensate; quantum fluid; Quantum mechanics; LHY; LHY-fluid; Lee-Huang-Yang; Rotating BEC; BEC droplet; Physics and Astronomy;

   Abstract : This thesis covers the work of a numerical examination of the rotational properties of a two-component Bose-Einstein condensate (BEC) utilizing the beyond mean-field extended Gross-Pitaevskii equation for a specified set of parameters. These parameters are chosen to cancel the strength of the mean-field interaction, which makes the system predominantly governed by the next order beyond the mean-field Lee-Huang-Yang (LHY) term. READ MORE

3. 2. On the Properties of a Few Electron-Hole system in a Double One-dimensional Harmonic Trap

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Matematisk fysik

   Author : Fan Pan; [2012]
   Keywords : Electron-Hole system; Few-body; CI methods; Exciton-like; Double one-dimension; harmonic trap; Physics and Astronomy;

   Abstract : One of the most important concepts in condensed matter physics is that of ``quasi particles''. The exciton is one such quasi particle. In semi-conductors, excitons are formed by the excitation of electrons from valence band to conduction band, which creates holes in the valence band. READ MORE