Boltzmann equation studies of the off-equilibrium QCD phenomena

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dc.contributor.advisorPeshier, Andréen_ZA
dc.contributor.authorViljoen, Brandonen_ZA
dc.date.accessioned2016-07-28T12:23:35Z
dc.date.available2016-07-28T12:23:35Z
dc.date.issued2016en_ZA
dc.description.abstractMuch of the evolution of the quark-gluon plasma (QGP) produced in heavy-ion collisions can be modeled by relativistic (viscous) hydrodynamics, which assumes that the partons are sufficiently close to equilibrium. We would like to explore the dynamics of QGP, even before this (quasi) equilibrium stage is reached. To that end, a useful tool from the stage where we can assume the partons to be on-shell is the relativistic Boltzmann equation. We develop parallel code to solve the relativistic Boltzmann equation in the relaxation time approximation in 3 + 1 dimensions (without simplifying assumptions on possible symmetries of the dynamics). Our approach, solving for the distribution function, will allow us to obtain detailed information about the dynamics of heavy ion collisions beyond hydrodynamics, which specify only bulk properties of the medium. Following recent work, we also explore the possibility of forming a transient Bose-Einstein condensate in a dense system of gluons, such as those found in the early stage of a heavy ion collision. For simplicity, we focus here on purely gluonic systems (without quark degrees of freedom). We first use our code to describe a system undergoing 0 + 1 longitudinal Bjorken expansion, after which we present some first numerical results for a system in the full 3 + 1 dynamics.en_ZA
dc.identifier.apacitationViljoen, B. (2016). <i>Boltzmann equation studies of the off-equilibrium QCD phenomena</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Physics. Retrieved from http://hdl.handle.net/11427/20971en_ZA
dc.identifier.chicagocitationViljoen, Brandon. <i>"Boltzmann equation studies of the off-equilibrium QCD phenomena."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Physics, 2016. http://hdl.handle.net/11427/20971en_ZA
dc.identifier.citationViljoen, B. 2016. Boltzmann equation studies of the off-equilibrium QCD phenomena. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Viljoen, Brandon AB - Much of the evolution of the quark-gluon plasma (QGP) produced in heavy-ion collisions can be modeled by relativistic (viscous) hydrodynamics, which assumes that the partons are sufficiently close to equilibrium. We would like to explore the dynamics of QGP, even before this (quasi) equilibrium stage is reached. To that end, a useful tool from the stage where we can assume the partons to be on-shell is the relativistic Boltzmann equation. We develop parallel code to solve the relativistic Boltzmann equation in the relaxation time approximation in 3 + 1 dimensions (without simplifying assumptions on possible symmetries of the dynamics). Our approach, solving for the distribution function, will allow us to obtain detailed information about the dynamics of heavy ion collisions beyond hydrodynamics, which specify only bulk properties of the medium. Following recent work, we also explore the possibility of forming a transient Bose-Einstein condensate in a dense system of gluons, such as those found in the early stage of a heavy ion collision. For simplicity, we focus here on purely gluonic systems (without quark degrees of freedom). We first use our code to describe a system undergoing 0 + 1 longitudinal Bjorken expansion, after which we present some first numerical results for a system in the full 3 + 1 dynamics. DA - 2016 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - Boltzmann equation studies of the off-equilibrium QCD phenomena TI - Boltzmann equation studies of the off-equilibrium QCD phenomena UR - http://hdl.handle.net/11427/20971 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20971
dc.identifier.vancouvercitationViljoen B. Boltzmann equation studies of the off-equilibrium QCD phenomena. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Physics, 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/20971en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Physicsen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPhysicsen_ZA
dc.titleBoltzmann equation studies of the off-equilibrium QCD phenomenaen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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