Monthly Archives: September 2015

Let gooby do teh hoemwerk: Baker-Campbell-Hausdorff identities

Problem Let and be linear operators, which commute with the commutator of and , i.e. Show that the following formulae hold: which are known as the Baker-Campbell-Hausdorff identities. They play an important rule, e.g. in quantum mechanics, whenever one deals … Continue reading

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