[理论室学术报告] Optimal efficiency and power: universality and fluctuations
||Prof. Jianhua Jiang (蒋建华)
Soochow University (苏州大学)
摘要：Carnot's seminal work has helped establishing the second law of thermodynamics. The upper bound efficiency, Carnot efficiency, however is usually far away from the maximum efficiency that can be realized in a realistic thermodynamic machine. We discuss some universal properties of optimal efficiency and power that are found only recently. A cooperative effect is emphasized and related to current state-of-art energy materials. In mesoscopic quantum heat engines, the efficiency can fluctuate to be above the Carnot efficiency. Our findings reveal universal properties of efficiency statistics and relate it to possible experimental reality.
1. Jiang et al., Phys. Rev. E 90, 042126 (2014)
2. Jiang et al., Phys. Rev. Lett. 115, 040601 (2015).
报告邀请人：孟子杨 副研究员 （82649331）