works on

From the 1 of 8 linked papers with an AI index.

activity
20242026
collaborators

8 papers

nlin.AO2026

Determining Critical Temperature Differences of Low-Temperature-Differential Stirling Engines: Nonlinear Dynamics Approach

Momoko Amemiya, Yuki Izumida

The paper uses nonlinear dynamics to derive self‑consistent equations that identify the critical temperature difference at which low‑temperature‑differential Stirling engines stop…

physics.soc-ph2026

Mean-Field Theory for Heider Balance under Heterogeneous Social Temperatures

Zhen Li, Yuki Izumida

Heider balance theory provides a fundamental framework for understanding the formation of friendly and hostile relations in social networks. Existing stochastic formulations typica…

cond-mat.stat-mech2025

Irreversibility of the pendulum revisited from Husimi's adiabaticity parameter

Yuki Izumida

We revisit the irreversibility of the pendulum with time-dependent angular frequency, considered in a classical paper by K. Husimi. He introduced a parameter that measures the adia…

cond-mat.stat-mech2025

Formulation of Entropy through Work by Carnot Machine and Direct Derivation of Law of Entropy Non-Decrease from Kelvin-Planck Principle

Yuki Izumida

We derive the law of entropy non-decrease directly from the Kelvin-Planck principle for simple and compound systems without using the Clausius inequality. A key of the derivation i…

cond-mat.stat-mech2025

Nonlinear refrigerator with a finite-sized cold heat bath

I. Iyyappan, Yuki Izumida, Sibasish Ghosh

We study the refrigerator working between a finite-sized cold heat bath and an infinite-sized hot heat bath (environment) in the nonlinear response regime. We assume that the initi…

cond-mat.stat-mech2025

Nonequilibrium thermodynamics of populations of weakly-coupled low-temperature-differential Stirling engines with synchronous and asynchronous transitions

Songhao Yin, Hiroshi Kori, Yuki Izumida

This study developed the theory of nonequilibrium thermodynamics for populations of low-temperature-differential (LTD) Stirling engines weakly-coupled in a general class of network…