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On the convergence of exponential operators—the Zassenhaus formula, BCH formula and systematic approximants

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Abstract

The convergence of the Zassenhaus formula is proven under an appropriate condition as well as for other exponential operators such as the Baker-Campbell-Hausdorff formula.

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Authors and Affiliations

  1. Theoretical Physics Institute, The University of Alberta, T6G 2J1, Edmonton, Canada

    Masuo Suzuki

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  1. Masuo Suzuki
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Communicated by H. Araki

On leave of absence from Department of Physics, Faculty of Science, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan

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Suzuki, M. On the convergence of exponential operators—the Zassenhaus formula, BCH formula and systematic approximants. Commun.Math. Phys. 57, 193–200 (1977). https://doi.org/10.1007/BF01614161

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  • DOI: https://doi.org/10.1007/BF01614161

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