I explore the entropy of a diffusing particle. Further examination of the mutual information of the particle and the vacuum, yields a derivation of the “action” of the particle being equal to the entropy. I argue the second law of thermodynamics is the justification for the principle of least action.
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Action as Entropy
Published: 12 November 2015 by MDPI in 2nd International Electronic Conference on Entropy and Its Applications session Physics and Engineering
Keywords: Entropy; action; quantum of action; discrete space; discrete time; diffusion