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Prog. Theor. Phys. Vol. 55 No. 5 (1976) pp. 1396-1411
Application of Skeleton Graph Technique to One-Dimensional Metal
Tetsuo Ohmi,
Katsuaki Nakajima and
Toshihiko Tsuneto
Department of Physics, Kyoto University, Kyoto 606
(Received November 28, 1975)
Abstract:
By the use of the method of skeleton diagram expansion, properties of a model of one-dimensional fermion system in the limit T → 0 are studied. Interaction between particles with nearly equal momenta is included in the model and the resulting complication due to the zero sound singularity is analyzed in a manner similar to the fermi liquid theory. The differential equations for the invariant charges, the limiting forms of static correlation functions and coherence length are obtained.
URL :
http://ptp.ipap.jp/link?PTP/55/1396/
DOI : 10.1143/PTP.55.1396
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