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Crossovers and phase transitions in Bose-Fermi mixtures
Thesis (MSc)--Stellenbosch University, 2014.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2014
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| _version_ | 1867613796699209728 |
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| access_status_str | Open Access |
| author | Kimene Kaya, Boniface Dimitri Christel |
| author2 | Avdeenkov, Alexander V. |
| author_browse | Avdeenkov, Alexander V. Kimene Kaya, Boniface Dimitri Christel |
| author_facet | Avdeenkov, Alexander V. Kimene Kaya, Boniface Dimitri Christel |
| author_sort | Kimene Kaya, Boniface Dimitri Christel |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MSc)--Stellenbosch University, 2014. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/86471 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:41:50.126Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/86471 Crossovers and phase transitions in Bose-Fermi mixtures Kimene Kaya, Boniface Dimitri Christel Avdeenkov, Alexander V. Kriel, Johannes N. Stellenbosch University. Faculty of Science. Dept. of Physics. Quantum phase transitions Bosons Fermions UCTD Dissertations -- Physics Theses -- Physics Thesis (MSc)--Stellenbosch University, 2014. ENGLISH ABSTRACT: We present a theoretical approach that allows for the description of trapped Bose-Fermi mixtures with a tunable interspecies interaction in the vicinity of a Feshbach resonance magnetic field.The many-body physics of the system is treated at equilibrium using the well-established mean-field and local density approximations. This reduces the physics locally to that of a homogeneous system. We observe a rich local phase structure exhibiting both first and second order phase transitions between the normal and BEC phases. We also consider the global properties of the mixture at a fixed number of particles and investigate how the density profiles and the populations of the various particle species depend on the detuning and trap profile. AFRIKAANSE OPSOMMING: Ons beskou ’n teoretiese beskrywing van gevangde Bose-Fermi mengsels met ’n verstelbare interspesie wisselwerking in die teenwoordigheid van ’n magneties-geïnduseerde Feshbach resonansie. Die veeldeeltjiefisika van die sisteem word by ekwilibrium binne die welbekende gemiddelde-veld en lokale-digtheid benaderings hanteer. Sodoende word die fisika lokaal tot die van ’n homogene sisteem gereduseer. Ons neem ’n ryk fase-struktuur waar met beide eerste- en tweede-orde fase-oorgange tussen die normale en BEK fases. Ons beskou ook die globale eienskappe van die mengsel by ’n vaste totale aantal deeltjies en ondersoek hoe die digtheidsprofiele en deeltjiegetalle van die afstemming en die profiel van die val afhang. 2014-04-16T17:29:34Z 2014-04-16T17:29:34Z 2014-04 Thesis http://hdl.handle.net/10019.1/86471 en_ZA Stellenbosch University viii, 61 p. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Quantum phase transitions Bosons Fermions UCTD Dissertations -- Physics Theses -- Physics Kimene Kaya, Boniface Dimitri Christel Crossovers and phase transitions in Bose-Fermi mixtures |
| title | Crossovers and phase transitions in Bose-Fermi mixtures |
| title_full | Crossovers and phase transitions in Bose-Fermi mixtures |
| title_fullStr | Crossovers and phase transitions in Bose-Fermi mixtures |
| title_full_unstemmed | Crossovers and phase transitions in Bose-Fermi mixtures |
| title_short | Crossovers and phase transitions in Bose-Fermi mixtures |
| title_sort | crossovers and phase transitions in bose fermi mixtures |
| topic | Quantum phase transitions Bosons Fermions UCTD Dissertations -- Physics Theses -- Physics |
| url | http://hdl.handle.net/10019.1/86471 |
| work_keys_str_mv | AT kimenekayabonifacedimitrichristel crossoversandphasetransitionsinbosefermimixtures |