A new approach to the Baker-Campbell-Hausdorff expansion
Mathematical Physics
2009-12-03 v1 math.MP
Abstract
For noncommutative variables x,y an expansion of log(exp(x)exp(y)) in powers of x+y is obtained.Each term of the series is given by an infinite sum in powers of x-y.The series is represented by diagrams.
Keywords
Cite
@article{arxiv.0912.0486,
title = {A new approach to the Baker-Campbell-Hausdorff expansion},
author = {A. V. Bratchikov},
journal= {arXiv preprint arXiv:0912.0486},
year = {2009}
}
Comments
6 pages