Hermitian star products are completely positive deformations
arXiv:math/0410350 · doi:10.1007/s11005-005-4844-3
Abstract
Let M be a Poisson manifold equipped with a Hermitian star product. We show that any positive linear functional on C^\infty(M) can be deformed into a positive linear functional with respect to the star product.
8 pages, LaTeX2e