Browsing by Subject "Many-body problem"
Now showing items 1-4 of 4
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(Texas A&M University. Libraries, 1986)We develop and review complete second-order Newton-Raphson type multiconfigurational self-consistent field (MCSCF) iterative procedures based on unitary exponential operators. We discuss characteristics that an MCSCF ...
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(Texas A&M University. Libraries, 1992)In this dissertation, we use the parquet summation for the two-body vertex as the framework for a perturbation theory of finite-temperature homogeneous boson systems. Our present formalism is a first step toward a full ...
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(Texas A&M University. Libraries, 1986)We study the quark-gluon plasma using linear response theory. We find different characteristics for different kinematical regions. For low k, k[o] (and k < k[o]) we find collective excitations and dispersive behavior typical ...
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(Texas A&M University. Libraries, 1988)Hydrogen chemisorption, the magnetism of small metal clusters, and the many-body problem were studied with the use of the Hubbard Hamiltonian. The chemisorption of hydrogen on transition metals was studied within the ...