Umbral methods and operator ordering
Mathematical Physics
2011-12-08 v1 math.MP
Abstract
By using methods of umbral nature, we discuss new rules concerning the operator ordering. We apply the technique of formal power series to take advantage from the wealth of properties of the exponential operators. The usefulness of the obtained results in quantum field theory is discussed.
Cite
@article{arxiv.1112.1570,
title = {Umbral methods and operator ordering},
author = {D. Babusci and G. Dattoli},
journal= {arXiv preprint arXiv:1112.1570},
year = {2011}
}
Comments
10 pages, no figures