Strongly interacting fermion systems: Technical progress report
The following developments have occurred: a new fixed-point (not quite a phase transition) has been identified for the two-impurity Kondo system. The methodology for electronic structure has been improved both with a procedure for variationally constructing efficient meshes for numerical computation and with improved two- electron correlations in variational wave functions. In the latter case we can, for several atoms, improve on what has been achieved by the Green Function Monte Carlo method. Work on the models of high-temperature superconductivity has resulted in an improved mean-field treatment for the Hubbard model that is capable of predicting a variety of phases and associated correlation functions and in an electric quadrupole fluctuation mechanism for oxygen-hole pairing in the cuprate high-T/sub c/ superconductors.
- Research Organization:
- Ohio State Univ., Columbus (USA). Dept. of Physics
- DOE Contract Number:
- FG02-88ER45347
- OSTI ID:
- 6246658
- Report Number(s):
- DOE/ER/45347-T1; ON: DE89012513
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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DOCUMENT TYPES
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