Dissertation
Fermionic Superfluids: The Structure of Polarized Vortices
Doctor of Philosophy (PhD), Washington State University
01/2020
Handle:
https://hdl.handle.net/2376/111949
Abstract
In this dissertation, applications of mean-field theories to fermionic systems are introduced, the discussion starts with standard BCS theory and proceeds to the state-of-the-art density functional theory for fermionic superfluidity in the unitary regime. A connection is made between a polarized fermionic quantum vortex and Fulde Ferrell (FF) states via assuming the local density approximation over the radial direction. It will be shown that vortices are a realization to a fairly significant degree of the FF states. After that, a theory called local quantum friction that can be used to remove energy from a fermionic system continuously is presented. The cooling methods are unitary so that they can maintain the orthogonality of single-particle states which are distributed over many compute nodes of a supercomputer. It will significantly reduce the time used to prepare a quantum many-body simulation by reducing the communication among compute nodes. At the end of this thesis, the application of a digital micromirror device (DMD) as a light modulator for ultracold experiments is introduced, it includes new methods used to generate arbitrary dipole potentials and holograms.
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Details
- Title
- Fermionic Superfluids: The Structure of Polarized Vortices
- Creators
- Chunde Huang
- Contributors
- Michael McNeil Forbes (Advisor)Peter Engels (Committee Member)Mark Kuzyk (Committee Member)
- Awarding Institution
- Washington State University
- Academic Unit
- Physics and Astronomy, Department of
- Theses and Dissertations
- Doctor of Philosophy (PhD), Washington State University
- Number of pages
- 237
- Identifiers
- 99900581498601842
- Language
- English
- Resource Type
- Dissertation