Thermodynamics at the level of nanoscales had remained confounding till a definite and intuitive prescription was put forward in the late 90’s. Quantum mechanical as well as classical mesoscopic thermal machines, which can be driven far from equilibrium, constitute an area that relies heavily on the definitions of fluctuating thermodynamic quantities that have been developed in the realm of Stochastic Thermodynamics. In the subsequent period spanning a little more than two decades, there has been a steady growth in research founded on Stochastic Thermodynamics including, but not limited to, generalizations to situations involving information gain and feedback, thermodynamic uncertainty relations, manifestation of quantum fluctuations at small scale, thermodynamic work fluctuations in the presence of thermal as well as non-thermal (e.g. active) heat reservoirs, etc. Fluctuation Theorems offer another example of a field of research in which there has been a proliferation of fundamental w...
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