Terry Blanton in a thread here sevral weeks back compared phase transitions to witch craft..
I have suggested that phase transitions of LENR nano fuel systems may be induced by a changing ambient magnetic field. Spin energy in the system driven by an increase of entropy may occur as an increase of phonic spin and a decrease of nuclear spin energy. See the following for a discussion of entangled system dynamics . https://phys.org/news/2019-07-phase-transition-entangled.html A pertinent issue from this paper regarding entropy of an entangled system follows: “The researchers developed a model of this measurement-induced phase transition based on a famous problem from percolation theory called the "vandalized resistor grid." In this problem, a vandal tries to find the smallest number of bonds (call the "shortest path" or "minimal cut") to slice through an electric grid in order to completely disconnect the network. The researchers showed that the problem of calculating the entropy of entanglement in a quantum system is equivalent to this optimization problem, in which the goal is to find a minimal cut through a disordered network that separates the network into two parts.” An increase in entropy in LENR fuel IMHO is a key driver in the reactions that eventually result in the transfer of enthalpy (heat energy) to the macroscopic reactor environs. Bob Cook