CONVERGENCE OF CONTINUED-FRACTION REPRESENTATION FOR THE GREENS-FUNCTION IN THE HUBBARD-MODEL

Authors
CHOI CH CHO YJ YI HS CHOI SD
Citation
Ch. Choi et al., CONVERGENCE OF CONTINUED-FRACTION REPRESENTATION FOR THE GREENS-FUNCTION IN THE HUBBARD-MODEL, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics, 52(3), 1995, pp. 3221-3223
Citations number
10
Categorie Soggetti
Physycs, Mathematical","Phsycs, Fluid & Plasmas
Journal title
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics → ACNP
ISSN journal
1063651X
Volume
52
Issue
3
Year of publication
1995
Part
B
Pages
3221 - 3223
Database
ISI
SICI code
1063-651X(1995)52:3<3221:COCRFT>2.0.ZU;2-1
Abstract
Using the operator algebra technique with a set of projection operator s generated from the primary operator defined by Wilson's group [S. K. Kim and R. S. Wilson, Phys. Rev. A 7, 1396 (1973)], we set up a conti nued-fraction representation for the single-particle Green's function in the Hubbard model. We find that, in a simple one-dimensional system with five lattice points, at least one cutoff stage appears in the re presentation.