Wick's theorem for q-deformed boson operators
Quantum Physics
2007-07-07 v1
Abstract
In this paper combinatorial aspects of normal ordering arbitrary words in the creation and annihilation operators of the q-deformed boson are discussed. In particular, it is shown how by introducing appropriate q-weights for the associated ``Feynman diagrams'' the normally ordered form of a general expression in the creation and annihilation operators can be written as a sum over all q-weighted Feynman diagrams, representing Wick's theorem in the present context.
Cite
@article{arxiv.quant-ph/0703086,
title = {Wick's theorem for q-deformed boson operators},
author = {Toufik Mansour and Matthias Schork and Simone Severini},
journal= {arXiv preprint arXiv:quant-ph/0703086},
year = {2007}
}
Comments
9 pages