Abstract
Due to the special form of the evolution equations in quantum theories, the exponential operators with constant or variable exponents \(-iH\delta t\)(where H are Hamiltonians) are the most typical elements of quantum dynamics, even if sometimes implicit or difficult to perceive behind too many details of perturbative calculations.
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Mielnik, B. (2018). Exponential Formulae in Quantum Theories. In: Kielanowski, P., Odzijewicz, A., Previato, E. (eds) Geometric Methods in Physics XXXV . Trends in Mathematics. Birkhäuser, Cham. https://doi.org/10.1007/978-3-319-63594-1_27
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DOI: https://doi.org/10.1007/978-3-319-63594-1_27
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