A note on the Zassenhaus product formula

Details A note on the Zassenhaus product formula A note on the Zassenhaus product formula

2006-03-06

arxiv.org/abs/math-ph/0603016v1

Physics

Mathematical Physics

Scientific paper

10.1063/1.2178586

We provide a simple method for the calculation of the terms c_n in the Zassenhaus product $e^{a+b}=e^a e^b \prod_{n=2}^{\infty} e^{c_n}$ for non-commuting a and b. This method has been implemented in a computer program. Furthermore, we formulate a conjecture on how to translate these results into nested commutators. This conjecture was checked up to order n=17 using a computer.

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