A Projected Entropy Controller for Transition Matrix Calculations.
We define the projected entropy S(T) at a given temperature T in the context of an Ising model transition matrix calculation as the entropy associated with the distribution of Markov chain realizations in energy-magnetization, E-H, space. An even sampling of states is achieved by accumulating the results from multiple Markov chains while decrementing 1/T at a rate proportional to the inverse of the effective number, exp(S(T)), of accessible projected states. Such a procedure is both highly accurate and far simpler to implement than a previously suggested method based on monitoring the evolution of the E-H distribution at each temperature. [1]
Publisher URL: http://arxiv.org/abs/1802.03983
DOI: arXiv:1802.03983v1
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