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An analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion method

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dc.contributor.author Delogu, Richard. en_US
dc.date.accessioned 2009-07-09T17:31:08Z
dc.date.available 2009-07-09T17:31:08Z
dc.date.issued 1985-07-09T17:31:08Z
dc.identifier.uri http://hdl.handle.net/10464/1726
dc.description.abstract The 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.iso eng en_US
dc.publisher Brock University en_US
dc.subject Green's functions. en_US
dc.subject Lattice functions. en_US
dc.subject Equations of motion. en_US
dc.subject Phonons. en_US
dc.title An analysis of decoupling procedures in generating thermal Green's functions of O([lambda]â ´) by the Zubarev equation of motion method en_US
dc.type Electronic Thesis or Dissertation en_US
dc.degree.name M.Sc. Physics en_US
dc.degree.level Masters en_US
dc.contributor.department Department of Physics en_US
dc.degree.discipline Faculty of Mathematics and Science en_US


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