Virtual talk: Dr. Bijay Agarwalla

Abstract: Trade-off relations involving the relative uncertainty of currents and the associated entropy production have been of enormous interest for the past few years in the field of non-equilibrium stochastic thermodynamics. It is now realized, for example, that the optimization of heat engines should balance power, efficiency as well as power fluctuations.  In this talk, I will talk about multi-affinity-driven continuous thermal machines and show that the relative fluctuations of individual currents for thermal machines are not independent but follow strict bounds, giving rise to a new bound for the mean efficiency of thermal machines. I will also talk about the extension of this bound for the time-reversal symmetry-breaking systems.