Title: Simulating Dirac models with ultracold atoms in optical lattices,
Abstract: We present a general model allowing "quantum simulation" of one-dimensional
Dirac models with 2- and 4-component spinors using ultracold atoms in driven 1D
tilted optical latices. The resulting Dirac physics is illustrated by one of
its well-known manifestations, Zitterbewegung. This general model can be
extended and applied with great flexibility to more complex situations.