title: One-parameter extension of the Doi-Peliti formalism and its relation with orthogonal polynomials.
abstract: An extension of the Doi-Peliti formalism for stochastic chemical kinetics is proposed. Using the extension, path-integral expressions consistent with previous studies are obtained. In addition, the extended formalism is naturally connected to orthogonal polynomials. We show that two different orthogonal polynomials, i.e., Charlier polynomials and Hermite polynomials, can be used to express the Doi-Peliti formalism explicitly.
authors.affiliation: Graduate School of Informatics, Kyoto University, Yoshida Hon-machi, Kyoto-shi, Kyoto 606-8501, Japan. ohkubo@i.kyoto-u.ac.jp
authors.forename: Jun
authors.initials: J
authors.lastname: Ohkubo