Realizability of Heat Released in Nondeterministic Processes Derived from a Fluctuation Theorem

We derive a condition for the realizability of heat released in nondeterministic processes from a fluctuation theorem, showing that this condition is strictly stronger than the probabilistic form of the second law of thermodynamics. With this realizability condition, the (generalized) Zurek's bound can be straightforwardly obtained and applied to a wider range of systems.