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Teoreticheskaya i Matematicheskaya Fizika, 1990, Volume 85, Number 2, Pages 248–257
(Mi tmf5948)
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This article is cited in 51 scientific papers (total in 51 papers)
Diagram technique for the Hubbard model.
II. Metal-insulator transition
S. I. Vakaru, M. I. Vladimir, V. A. Moskalenko
Abstract:
An approximate Dyson equation is formulated for the correlation Green's function and the free-energy diagrams corresponding to this approximation are summed. The basic equations that determine the Mott metal-insulator transition are established. The critical value of the Coulomb interaction is $U_c=W/2$, where $W$ is the width of the band.
Received: 18.06.1990
Citation:
S. I. Vakaru, M. I. Vladimir, V. A. Moskalenko, “Diagram technique for the Hubbard model.
II. Metal-insulator transition”, TMF, 85:2 (1990), 248–257; Theoret. and Math. Phys., 85:2 (1990), 1185–1192
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https://www.mathnet.ru/eng/tmf5948 https://www.mathnet.ru/eng/tmf/v85/i2/p248
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