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dc.contributor.authorDelogu, Richard.en_US
dc.date.accessioned2009-07-09T17:31:08Z
dc.date.available2009-07-09T17:31:08Z
dc.date.issued1985-07-09T17:31:08Z
dc.identifier.urihttp://hdl.handle.net/10464/1726
dc.description.abstractThe Zubarev equation of motion method has been applied to an anharmonic crystal of O( ,,4). All possible decoupling schemes have been interpreted in order to determine finite temperature expressions for the one phonon Green's function (and self energy) to 0()\4) for a crystal in which every atom is on a site of inversion symmetry. In order to provide a check of these results, the Helmholtz free energy expressions derived from the self energy expressions, have been shown to agree in the high temperature limit with the results obtained from the diagrammatic method. Expressions for the correlation functions that are related to the mean square displacement have been derived to 0(1\4) in the high temperature limit.en_US
dc.language.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectGreen's functions.en_US
dc.subjectLattice functions.en_US
dc.subjectEquations of motion.en_US
dc.subjectPhonons.en_US
dc.titleAn analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion methoden_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Physicsen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Physicsen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US


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