Browsing by Subject "Density Matrix Renormalization Group"
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- PublicationOpen AccessEffective field theory of interactions on the lattice(Springer, 2015-05-08) Valiente Cifuentes, Manuel; Zinner, Nikolaj Thomas; FísicaWe consider renormalization of effective field theory interactions by discretizing the continuum on a tight-binding lattice. After studying the one-dimensional problem, we address s-wave collisions in three dimensions and relate the bare lattice coupling constants to the continuum coupling constants. Our method constitutes a very simple avenue for the systematic renormalization in effective field theory, and is especially useful as the number of interaction parameters increases.