• Login
    View Item 
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    •   Athenaeum Home
    • University of Georgia Theses and Dissertations
    • University of Georgia Theses and Dissertations
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Monte Carlo and self-consistent feynman diagram studies of magnetic and correlated electron models

    Thumbnail
    Date
    2002-12
    Author
    Liu, Cejun
    Metadata
    Show full item record
    Abstract
    A Metropolis-Type Dynamics and the Monte Carlo Damage Spreading technique are proposed to study Ising,mixed-spin Ising,and Blume-Capel models on the 2- dimensional square lattice.For the mixed spin Ising model,our results strongly suggest that this spin model may have a tricritical point at .nite temperature;For S =1 and 2 integer spin Blume-Capel models,our results suggest there exists one multi-critical point along the order-disorder transition line.For S =3/2 and 5/2 half- integer spin Blume-Capel models,our results show that this multi-critical behavior does not exist. The Self-Consistent High-Order Feynman Diagram Expansion Technique is intro- duced and then employed to study two correlated electron models:the Hubbard Model (HBM)and the Anderson Impurity Model (AIM)with maximum expansion order n =3.The basic idea of Monte Carlo Summation technique combined with the Self-Consistent Feynman Diagram Expansion,the initial results,and proposed future work on this topic are also presented.
    URI
    http://purl.galileo.usg.edu/uga_etd/liu_cejun_200212_phd
    http://hdl.handle.net/10724/20615
    Collections
    • University of Georgia Theses and Dissertations

    Related items

    Showing items related by title, author, creator and subject.

    • Applications in pharmacokinetic modeling 

      Arnold, Esther (uga, 2003-05)
      In this paper I discuss the melancholy nature of happiness in two short stories by Herman Melville, “The Piazza” and “Bartleby, the Scrivener.” Applying Melville’s passage from Moby-Dick on the “conceit of attainable ...
    • A model that combines diagnostic classification assessment with mixture item response theory models 

      Choi, Hye-Jeong (uga, 2010-05)
      The purpose of this dissertation is to present a new psychometric model that combines a Mixture Rasch model with a diagnostic model. We refer to this model as a diagnostic classification mixture Rasch model (DCMixRM). The ...
    • The future generation 

      Barnes, Mary Alyssa (uga, 2010-12)
      With the increase of students with special needs participating in regular education classes, general educators are responsible for meeting the needs of a diverse group of students. In turn, higher education institutions ...

    About Athenaeum | Contact Us | Send Feedback
     

     

    Browse

    All of AthenaeumCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    About Athenaeum | Contact Us | Send Feedback