Ten Years of the Positive P-Representation

Abstract

The positive P-representation is an example of a new class of phase-space representations, which utilize a nonclassical phase-space. These have many applications, and have been widely used in quantum optics in the last decade, since their introduction. The utility of the positive P-representation is that it retains many of the advantages of the diagonal P-representation, while still remaining nonsingular, even for nonlinear Hamiltonians. However, attention to boundary terms and to the use of stable integration methods are important.