6 papers
Macroscopic Thermodynamic Framework for the Mpemba Effect
Yun-Qian Lin, Z. C. Tu, Yu-Han Ma
The counterintuitive Mpemba effect, wherein a hotter system cools faster, critically lacks a general macroscopic theory. Here, starting from linear irreversible thermodynamics, we…
Coercivity Landscape Characterizes Dynamic Hysteresis
Miao Chen, Xiu-Hua Zhao, Yu-Han Ma
Hysteresis, with rich dynamical behaviors-especially in interacting systems-has drawn broad research interest. Yet its dynamic scalings across time scales lack a unified descriptio…
Finite-time and Finite-size scalings of coercivity in dynamic hysteresis
Miao Chen, Xiu-Hua Zhao, Yu-Han Ma
The coercivity panorama for characterizing the dynamic hysteresis in interacting systems across multiple timescales is proposed by Chen et al. in a companion paper. For the stochas…
Stability of rotating magnetic levitation
Mingjun Fan, Jinyu Chen, Yongquan Ji +3
Dynamical magnetic levitation has attracted broad interest in the realm of physics and engineering. The stability analysis of such system is of great significance for practical app…
Revisiting Endo-reversible Carnot engine: Extending the Yvon engine
Xiu-Hua Zhao, Yu-Han Ma
A famous paper [Am. J. Phys. 43, 22 (1975)] unveiled the efficiency at maximum power (EMP) of the endo-reversible Carnot heat engine, now commonly referred to as the Curzon-Ahlborn…
Finite-time thermodynamics: A journey beginning with optimizing heat engines
Yu-Han Ma, Xiu-Hua Zhao
In this paper, we summarize the historical development of finite-time thermodynamics and review the current state of research over the past two decades in this field, focusing on f…