2004
DOI: 10.1007/s00220-003-1003-5
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On the Singularity of the Free Energy at a First Order Phase Transition

Abstract: At first order phase transition the free energy does not have an analytic continuation in the thermodynamical variable, which is conjugate to an order parameter for the transition. This result is proved at low temperature for lattice models with finite range interaction and two periodic ground-states, under the only condition that they verify Peierls condition.

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Cited by 19 publications
(20 citation statements)
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“…We recall that |V Γ | is the ν-dimensional volume of the contour support; it is zero for "thin" contours, whose support has dimension ν − 1. Therefore, the external field is absent from (21) in this case. Because the original partition functions are "almost" homogeneous with respect to dilations of the vector of phase activities (see (1) and also Sec.…”
Section: Condition 4 (Pierls-pirogov-sinai) For All Q the Inequalitymentioning
confidence: 87%
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“…We recall that |V Γ | is the ν-dimensional volume of the contour support; it is zero for "thin" contours, whose support has dimension ν − 1. Therefore, the external field is absent from (21) in this case. Because the original partition functions are "almost" homogeneous with respect to dilations of the vector of phase activities (see (1) and also Sec.…”
Section: Condition 4 (Pierls-pirogov-sinai) For All Q the Inequalitymentioning
confidence: 87%
“…We note that all the quantities in (30) are small if ψ 0 and ψ 1 involved in the definition of M (see (21)) are small and i and j are bounded. We define the standard formal partial derivatives of the above functions with respect to the model parameters µ and λ.…”
Section: Theorem 2 (Phase Stability Criterion) In the First-order Phmentioning
confidence: 99%
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“…также [20]). В дальнейшем Фридли и Пфистером в работе [21] результат Исакова был обобщен на двухфазные контурные модели. Можно предполагать, что в многофазном случае в условиях теоремы 4 точ-ки границы области аналитичности являются одновременно точками существенных особенностей давления.…”
Section: Introductionunclassified