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Teoreticheskaya i Matematicheskaya Fizika, 1983, Volume 57, Number 3, Pages 338–353
(Mi tmf2286)
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This article is cited in 4 scientific papers (total in 4 papers)
Gas of “connected configurations” and allowance for the “hard-core” potential of contours in the Mayer expansion of a gas of lattice-model contours
A. G. Basuev
Abstract:
A theorem is proved that makes it possible to take into account the “hard-core”
potential of contours and reduce the study of the convergence of the Mayer
expansions of the gas of contours to the remaining part of the interaction.
In particular, for a model with nearest-neighbor interaction, in which
$$
U(\alpha)=\sum_{|x-y|=1}\varepsilon(\alpha(x)\alpha^{-1}(y)),
$$
$\alpha(x)$ takes values in the discrete group $G$ with identity $e$, $\varepsilon(\alpha)=\varepsilon(\alpha^{-1})$ $\forall\alpha\ne e$,
$\varepsilon(e)=0$ and
$$
\sum_{\alpha\in G\setminus e}\exp\{-\beta U(\alpha)\}
\underset{\beta\to\infty}\longrightarrow0,
$$
the existence is proved of not less than $|G|$ ($|G|\leqslant\infty$) limit Gibbs distributions, which are small perturbations of the ground states $\alpha(x)=\alpha_0\in G$.
Received: 22.02.1983
Citation:
A. G. Basuev, “Gas of “connected configurations” and allowance for the “hard-core” potential of contours in the Mayer expansion of a gas of lattice-model contours”, TMF, 57:3 (1983), 338–353; Theoret. and Math. Phys., 57:3 (1983), 1178–1189
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https://www.mathnet.ru/eng/tmf2286 https://www.mathnet.ru/eng/tmf/v57/i3/p338
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Abstract page: | 276 | Full-text PDF : | 95 | References: | 50 | First page: | 1 |
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