2024-09-17 チャルマース工科大学
＜関連情報＞
- https://news.cision.com/chalmers/r/new-understanding-of-the-limits-on-nano-noise,c4036481
- https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.132.186304
非平衡ゆらぎ-散逸境界 Out-of-Equilibrium Fluctuation-Dissipation Bounds
Ludovico Tesser and Janine Splettstoesser
Physical Review Letters Published 3 May 2024
DOI:https://doi.org/10.1103/PhysRevLett.132.186304
Abstract
We prove a general inequality between the charge current and its fluctuations valid for any weakly interacting coherent electronic conductor and for any stationary out-of-equilibrium condition, thereby going beyond established fluctuation-dissipation relations. The developed fluctuation-dissipation bound saturates at large temperature bias and reveals additional insight for heat engines, since it limits the output power by power fluctuations. It is valid when the thermodynamic uncertainty relations break down due to quantum effects and provides stronger constraints close to thermovoltage.
