首页|Limiting Gibbs measures of the q-state Potts model with competing interactions

Limiting Gibbs measures of the q-state Potts model with competing interactions

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We consider q-state Potts model in the presence of competing two nearest interactions and prolonged next nearest interactions on a Cayley tree of order two. We derive the recursion relations, which determine the free energy of a q-state Potts model on the Cayley tree. We exactly solve the phase transitions problem for the model, namely we calculate the critical surface such that there is a phase transition above it, and a single Gibbs state found elsewhere. We study the periodicity of the phases (Gibbs measures) by means of Lyapunov exponents.

Potts modelCompeting interactionsGibbs measurePhase transitionLyapunov exponent

Akin, Hasan、Ulusoy, Suleyman

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Abdus Salam Int Ctr Theoret Phys ICTP

Amer Univ Ras Al Khaimah

2022

Physica

Physica

ISSN:0921-4526
年,卷(期):2022.640
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