Aspects of the diagram technique for Hubbard operators
Teoretičeskaâ i matematičeskaâ fizika, Tome 59 (1984) no. 2, pp. 293-296
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Two features of the diagram technique for Hubbard operators are established, namely, the need to choose a definite way to disentangle nondiagonal operators from a time-ordered product and linear dependence of the concentration fluctuations on the temperature.
@article{TMF_1984_59_2_a11,
author = {A. V. Vedyaev and M. Yu. Nikolaev},
title = {Aspects of the diagram technique for {Hubbard} operators},
journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
pages = {293--296},
year = {1984},
volume = {59},
number = {2},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/}
}
A. V. Vedyaev; M. Yu. Nikolaev. Aspects of the diagram technique for Hubbard operators. Teoretičeskaâ i matematičeskaâ fizika, Tome 59 (1984) no. 2, pp. 293-296. http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/
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