Thermal transitions in a one-dimensional, finite-size Ising model

• URL: http://arxiv.org/abs/2307.15479v3
• Date: Wed, 24 Jan 2024 09:21:42 GMT
• Title: Thermal transitions in a one-dimensional, finite-size Ising model
• Authors: Varazdat Stepanyan, Andreas F. Tzortzakakis, David Petrosyan and Armen E. Allahverdyan
• Abstract summary: We revisit the one-dimensional ferromagnetic Ising spin-chain with a finite number of spins and periodic boundaries. We derive numerically and verify its various stationary and dynamical properties at different temperatures. We illustrate the utility of our results by their application to structural transitions in biopolymers having non-trivial intermediate equilibrium states.
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• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We revisit the one-dimensional ferromagnetic Ising spin-chain with a finite number of spins and periodic boundaries and derive analytically and verify numerically its various stationary and dynamical properties at different temperatures. In particular, we determine the probability distributions of magnetization, the number of domain walls, and the corresponding residence times for different chain lengths and magnetic fields. While we study finite systems at thermal equilibrium, we identify several temperatures similar to the critical temperatures for first-order phase transitions in the thermodynamic limit. We illustrate the utility of our results by their application to structural transitions in biopolymers having non-trivial intermediate equilibrium states.

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