La importancia Física de la “mínima acción”.

Resumen

Variational calculus applied to physical action, sometimes known –inexactly– as “principle of the least action”, has helped us quite a lot to construct our scientific picture of the natural world. From Leibniz and Maupertuis to Planck and Einstein, this method has repetedly shown its effectiveness, but only with Feynman path-integrals do we begin to understand the underlying explanation.