出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：An obstacle to realize supersymmetry on a lattice is the breakdown of Leibniz rule. We give a
proof of a no-go theorem that it is impossible to construct a lattice field theory in an infinite lattice
volume with any nontrivial field products and difference operators that satisfy the following three
properties: (i) translation invariance, (ii) locality and (iii) Leibniz rule. We then propose a way
to escape from the no-go theorem by introducing infinite flavors, and present a lattice model of
N = 2 supersymmetric quantum mechanics equipped with the full exact supersymmetry.
