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Numerical study of slave boson mean field equations for the Hubbard model

โœ Scribed by L. Lilly; A. Muramatsu; W. Hanks

Book ID
104356781
Publisher
Elsevier Science
Year
1990
Tongue
English
Weight
208 KB
Volume
165-166
Category
Article
ISSN
0921-4526

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โœฆ Synopsis

We consider the one band Hubbard model in the Slave Bosom formulation first introduced by Kotliar a.ud Ruckenstein. Applying a modified Mean Field Approxima.tion (MFA), I 1 11 w lit I a ows for broken symmetry st,ates, we numerically determine the values of the involved Bose fields at the saddle point. Our data for local Fermion correlation fuuctions agree surprisiugly well with da.ta obtained in recent Quantum Monte Carlo calcula.tions.

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