3 papers
cond-mat.stat-mech2025
Exact bound of power-efficiency trade-off in finite-time thermodynamic cycles
R. X. Zhai, Xin Yue, C. P. Sun
Power and efficiency are fundamental criteria for evaluating the performance of thermodynamic cycles. However, it is generally impossible to maximize both simultaneously. In partic…
cond-mat.stat-mech2025
Quantum Thermodynamic Integrability for Canonical and non-Canonical Statistics
Ruo-Xun Zhai, C. P. Sun
We extend the Carathéodory principle of the Second Law to quantum thermodynamics with energy levels depending on macroscopic variables, such as volume and magnetic field. This ext…
cond-mat.stat-mech2025
Power-Efficiency Constraint for Chemical Motors
Ruo-Xun Zhai, Hui Dong
Chemical gradients provide the primordial energy for biological functions by driving the mechanical movement of microscopic engines. Their thermodynamic properties remain elusive,…