Sone, AkiraSinhab, KanuDeffner, Sebastian2023-08-302023-08-302023-08-09https://doi.org/10.48550/arXiv.2308.04951http://hdl.handle.net/11603/29436What is the major difference between large and small systems? At small length-scales the dynamics is dominated by fluctuations, whereas at large scales fluctuations are irrelevant. Therefore, any thermodynamically consistent description of quantum systems necessitates a thorough understanding of the nature and consequences of fluctuations. In this chapter, we outline two closely related fields of research that are commonly considered separately – fluctuation forces and fluctuation theorems. Focusing on the main gist of these exciting and vivid fields of modern research, we seek to provide a instructive entry point for both communities of researchers interested in learning about the other.32 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Attribution 4.0 International (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/Text