What is the fine-grained topic of the following text: We find that Classical Nucleation Theory underestimates the time needed for the formation of a critical cluster by two orders of magnitude and that this discrepancy is due to the more complex dynamics of the two variable model and not, as often is assumed, a result of errors in the estimation of the free energy barrier. Only return the topic.
Discrepancies in Classical Nucleation Theory's estimation of critical cluster formation time