Two-state paramagnetism: The effect of temperature fluctuations

Nassima Adimi and Kamel Ourabah

Physica A: Statistical Mechanics and its Applications, 2025, vol. 677, issue C

Abstract: In this Letter, we investigate the impact of temperature fluctuations on the induced magnetization of a simple paramagnetic two-state system. These fluctuations are considered within the framework of superstatistics. We specifically examine three temperature distributions resulting from additive or multiplicative random processes: the χ2, inverse-χ2, and log-normal distributions. Our analysis reveals that fluctuations generally lead to a reduction in magnetization and an increase in mean energy compared to scenarios without fluctuations. In essence, these fluctuations act as an effective temperature.

Keywords: Superstatistics; Complex systems; Paramagnetism; Fluctuating environments; Non-equilibrium dynamics; Inverse temperature distributions (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:677:y:2025:i:c:s0378437125005783

DOI: 10.1016/j.physa.2025.130926

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