Nonperturbative solutions to the Hubbard Model
Nonperturbative solutions to the Hubbard model are found by using the functional derivative method. A system of closed equations is obtained for the Green's functions of the Hubbard model. Exact expressions for the self-energy are derived which involve only first order functional derivatives. A...
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| Format: | Others |
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DigitalCommons@Robert W. Woodruff Library, Atlanta University Center
1987
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| Online Access: | http://digitalcommons.auctr.edu/dissertations/1179 http://digitalcommons.auctr.edu/cgi/viewcontent.cgi?article=2776&context=dissertations |